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PromptArmor:Threat Intelligence·· 2026-01-20精选AI 评分67

PromptArmor 发布 Claude Cowork 安全部署指南,按三档风险分级给出配置方案

Implement Claude Cowork Securely

AI 导读

PromptArmor 发布 Claude Cowork 安全部署指南,梳理其威胁模型并给出三档功能与风险权衡的配置方案,从最大化功能的 Tier 1 到基本隔离外部输入的 Tier 3,并逐项说明组织级管理设置。

推荐理由

安全厂商基于自身威胁模型研究,给出 Claude Cowork 三档部署配置和逐项管理设置,企业安全团队可按风险容忍度直接落地。

正文

Below, we walk through the threat model in depth, break out our recommended tiers of functionality and corresponding configurations you can set to mitigate risks for each tier, and then walk through every configuration you can set for Claude Cowork and what that might mean for your business.

Claude Changes Every Day

100+ alerts since January. We monitor:

Features enabled by default

New data retention policies

Plugins and connectors

And much more

Recent Alerts and Configurations for Claude

2026-06-09

Data Retention Change

Model Change

Anthropic has released Fable, a Mythos-class model. New terms dictate that prompts submitted to and outputs generated by Fable are retained by Anthropic for 30 days. This supersedes existing ZDR and contractual agreements, and includes use via third-party providers.

See configurations

High

See 6 more alerts from Jun 8 – Jun 9

2026-06-08

Feature Change

Claude has added a dashboard in Organization settings for connector owners to monitor connector performance across Claude surfaces, including adoption, errors, latency, and usage breakdowns.

See configurations

Low

See 16 more alerts from May 30 – Jun 8

2026-05-29

Feature Change

In Claude Cowork, admins can now configure the egress allowlist to control which hosts the agent may fetch when processing search results.

See configurations

Medium

See 42 more alerts from Apr 28 – May 29

2026-04-27

Enabled by Default

Integration

Anthropic is adding Plugins to Claude that are available to users to install by default.

See configurations

Medium

The Threat Model

Claude Cowork Threat Model
Claude Cowork Threat Model

For Claude Cowork, the range of threats is greater because of the amount of untrusted input and the amount of confidential data it has access to. It also has a range of actions it can take on your system, which increases the downstream risk of your system being manipulated.

For example, an untrusted plugin downloaded from the internet could manipulate Claude into following an attacker’s instructions. You can see an example from Claude Code here that demonstrates how that could lead to data exfiltration: Hijacking Claude Code via Injected Marketplace Plugins

Because Claude has access to local file systems, it can also exfiltrate files that you have. Here is an example of Claude Cowork being manipulated by external data into exfiltrating confidential data: Claude Cowork exfiltrates files

This could also lead to phishing. For example, an untrusted piece of content could convince a user into submitting their credentials - a form of social engineering attack that allows an attacker to manipulate the LLM into crafting contextually relevant queries to convince a user to share their credentials. Example here with Slack: Data Exfiltration from Slack via Indirect Prompt Injection

Ultimately, the best way to “secure” Claude Cowork against novel indirect prompt injection vulnerabilities stems across four layers:

Layer 1

Restrict data sources

implementing binary restrictions on access to types of external data sources that Claude can access (e.g., disallowing Slack access)

Layer 2

Govern approved data sources

configuring restrictions on that data (e.g., permitting only organizational admins to add skills)

Layer 3

Restrict actions on output

configuring restrictions on the types of actions that Claude can take based on output (e.g., restrict the sites Claude in Chrome can click on)

Layer 4

Restrict output surfaces

restrictions on the externally connected output surfaces (e.g.,

preventing automated link previews

in Slack)

However, Claude’s settings are a bit interesting – not every single one operates in isolation. For example, to use Plugins, Skills must be enabled; and to enable Skills, an organization must enable Cloud Code Execution and File Creation. This is counterintuitive as Plugins are applicable to Cowork, while the Cloud Code Execution setting is labeled as only applicable to Claude 'Chat'. Below, we walk through different combinations of ways you can set up Claude Cowork - that have different tradeoffs between functionality and risk - accounting for what combinations are actually feasible given what settings can be on (or off) at the same time.

Configurations vs Functionality

Below are our recommended Tiers of Claude Cowork usage depending on your organization’s risk tolerance. Maximizing functionality requires risk tradeoffs depending on the threat model.

Tier 1 maximizes functionality for rapid adoption

Tier 2 enables functionality where organizational controls are available

Tier 3 optimizes functionality with consideration for a low-risk deployment requirement

FunctionalityTier 1Tier 2Tier 3
Work in a Local FolderYesYesYes
SkillsYeslmtd.No
PluginsYeslmtd.No
Agentic Browsing (Claude in Chrome)Yeslmtd.lmtd.
Web SearchYesYesYes
Sandbox Network AccessYeslmtd.No
Desktop Extensionslmtd.lmtd.No
Connectorslmtd.lmtd.No
Interactive File CreationYesYesYes
Work with ProjectsYesNoNo
Work with Ask OrganizationYesYesNo
Work across Excel and PPTYesNoNo
Claude DesignYesYesNo
Claude in SlackYesNoNo
Dispatch AgentsYesNoNo

Get the configs to securely deploy Claude for your use case

We help security teams strike the balance between capability and risk

Tier 1: Maximized functionality

In Tier 1, you get access to all of Claude Cowork’s functionality. However, this greatly increases the risk surface. Injections can come from Skills and Plugins that users upload, from local folders that contain untrusted data, web search, connectors, and desktop extensions. Additionally, Claude can work across apps via Claude for PowerPoint and Claude for Excel which can be orchestrated from Cowork. Furthermore, extended functionalities such as Claude in Slack and Claude for Design are scoped in.

There are some useful settings that you should turn on regardless, even if you want to maximize functionality. While settings do not substantially reduce your risk exposure to indirect prompt injection for Cowork they allow you to maximize functionality while avoiding some risks and enabling telemetry to gain observability.

Note: Connectors and desktop extensions are still ‘restricted’ in this tier, as they must be individually added by an organization.

NIST AI RMF Coverage with Tier 1 Configuration
Not sure what these categories are? See our NIST AI RMF Reference

Govern

1, 2

Map

1, 2

Measure

—

Manage

1

Required Settings for Tier 1

Settings for Cowork (and universal settings)

Disable

Organization > Data and Privacy > Privacy Settings > Rate Chats

Allow people to rate Claude's responses and share that feedback with Anthropic. Disabling this feature limits the sharing of potentially sensitive data with Anthropic. This does not affect functionality.

Enable

Organization > Cowork > Monitoring

Cowork supports OpenTelemetry (OTel) events for monitoring and observability. You can enable this for granular observability without impacting any functionality.

Settings for Claude Chat Only

Disable

Organization > Privacy Settings > Location Metadata

Allow Claude to use coarse location metadata (city/region) to improve product experiences for your team members.

Operationalize fast; minimize risk

Enable secure adoption now

Tier 2: Balancing functionality with risks

In tier two, functionality tradeoffs are balanced against risks, restricting control over connected resources to the organization-level where possible and limiting access to sensitive org-specific data (e.g., connection to Excel and PowerPoint). Claude can perform meaningful automation and file work using org-controlled tools and integrations. Prompt injection risk is managed by restricting untrusted data sources (user skills, plugins, unvetted domains) while keeping the org's approved toolset functional.

What's enabled:

  • Organization-vetted skills — org-approved skills can be used; users cannot upload their own

  • Skill sharing — allowed within one's organization

  • Organization-configured plugins — org-designated plugins auto-installed; users cannot add their own

  • Network egress (package managers only) — Claude can install packages for data analysis; additional approved domains can be allowlisted

  • Claude in Chrome — browser automation enabled for most sites, with an org-managed blocklist for sensitive sites

  • Desktop extensions — org-uploaded extensions available; allowlist controls what users can install

  • Connectors — org-configured connectors available to team members

  • Always allow mode for connectors — prohibited, encouraging human in the loop approval

  • Skip all approvals mode — prohibited, encouraging human in the loop approval

  • Public Projects — access to public projects prohibited, limiting injection risks

  • Ask Organization — allows access trusted org-specific data

  • M365 Integrations — orchestrating Claude for PowerPoint and Excel prohibited limiting varied trust level data processing

  • Claude in Design — allows the Claude for Design tool; use with external code assets is discouraged.

  • Claude in Slack — disallowed, limiting ingest of varied trust level data sources

  • Dispatch agents — disabled, preventing autonomous agents from interacting with one's computer without substantial oversight

NIST AI RMF Coverage with Tier 2 Configuration

Govern

1, 2, 3, 4, 6

Map

1, 2, 3, 4

Measure

2

Manage

1, 2, 3, 4

Required Settings for Tier 2

Settings for Cowork (and universal settings)

Enable

Organization > Libraries > Skills > Cloud Code Executions and File Creation

Allow Claude to execute code on a server and create and edit docs, spreadsheets, presentations, PDFs, and data reports. Required for skills to be enabled. Available on web and desktop. Cowork can perform most of these file creation capabilities locally, without cloud access. However, enabling this setting is a prerequisite to allowing the use of Skills and Plugins. Note: This path reflects the setting when viewed from the desktop app. In the web browser, it is displayed as 'Code Execution and File Creation' (no 'Cloud').

Enable

Organization > Libraries > Skills > Skills

Turn skills on or off for everyone in your organization, including admin-managed organization skills. Requires 'Code execution and file creation' to be enabled to use. Skills might contain executable code. Team members should be careful when using skills from unknown sources.

Disable

Library > Skills > User-created skills

Allow team members to upload or create their own skills. Turn off to lock your org to approved skills only.

Enable

Library > Skills > Skill sharing

Allow team members to share skills with each other.

Enable

Library > Skills > Share with organization

Allow team members to share skills with the entire organization.

Configure

Organization > Libraries > Skills > Organization Skills

Manage skills that can be viewed and used by anyone in your organization. Select skills that have been vetted by one’s organization and add them to the organization-wide skill list.

Configure

Organization > Libraries > Plugins

Allows organizations to designate plugins that will be blocked, automatically installed, or made optionally available to organization members. Here, organizations should select plugins to set as ‘installed by default’ for users. Note: during testing, when organization-level plugins were installed by default for users, it was observed that the org-level plugins were installed but did not appear operable without Skills enabled. Related:

Claude for Legal Risk

Disable

Organization > Office Agents > Let Claude Work Across Apps

Members can let Claude share context between apps like Excel and PowerPoint. Related:

AI in Excel and Google Sheets: Prompt Injection and Data Exfiltration Risks

Disable

Organization > Cowork > Cowork > Enable Dispatch

Allow members to create persistent Cowork agents that can control their computer to autonomously work on tasks. Persistent agents receive instructions from any logged in device on the same account and can access files, apps and websites on their computer. Dispatch agents are prohibited, preventing autonomous agents with computer usage capabilities from operating a user's device without oversight (which carries significant risk as a prompt injection can manipulate Claude to interact with a user's apps, including taking screenshots or activating the user's keyboard).

Enable

Organization > Capabilities > Code Execution > Allow Network Egress

Give Claude network access to install packages and libraries in order to perform advanced data analysis, custom visualizations, and specialized file processing. Monitor chats closely as this comes with security risks.

Then configure

Organization > Capabilities > Code Execution > Allow Network Egress > Domain Allowlist > Package Managers Only

Additionally, add any approved domains the Cowork sandbox will need to access (e.g., to preview interactive content with external elements) to the ‘Additional allowed domains’ section. Related:

What domains should I add to my allowlist?

Enable

Organization > Claude in Chrome > Enable for your Team

Allow team members to use the Claude in Chrome extension. Configure site permissions after enabling. This enables the Claude in Chrome connector, which allows Claude to navigate and operate the user’s Chrome browser.

Set ‘Allow extension’

Organization > Claude in Chrome > Default for all sites > Allow/Deny Extension

This will configure Claude in Chrome so that sites are allowed by default, unless they are explicitly added to the ’Blocked sites’ list.

Configure

Organization > Claude in Chrome > Blocked Sites

Claude in Chrome cannot be used on these websites. Add sensitive sites to the Blocked Sites list. It is recommended to block sites for which the user operates with a high level of privilege and sites that are likely to process highly sensitive data (e.g., password managers, billing pages for apps used in the organization, etc.) Note: during testing, the blocklist did not appear to restrict access.

Enable

Organization > Libraries > Connectors > Desktop Extension Allowlist

Limit the extensions that your team can install on their desktop. When enabled, users can only install desktop extensions that have been added to the list above. Via this allowlist, organizations should configure which desktop extensions they would like to allow. Note, ‘desktop extensions (DXT)’ are being renamed to MCP Bundles (MCPB). Related:

The Risks of Connectors in Your AI Applications

Configure

Organization > Libraries > Connectors > Add

Control which connectors your team members have access to. Use this menu to add connectors for use within one’s organization. Related:

The Risks of Connectors in Your AI Applications

Disable

Organization > Cowork > Permissions > Allow "Act without asking" mode

When enabled, users can let Claude act without asking for approval—including using tools, editing files, and browsing websites. This can put organizational data at risk. Disable this setting — when 'always allow' is available, prompt injections can manipulate Claude to take sensitive actions on websites or perform destructive operations on local files in the connected Cowork folder without user consent.

Disable

Organization > Cowork > Permissions > Allow “Always allow” for connector tools

Let members choose "Always allow" when approving connector tools in Cowork. This increases risk from prompt injection — content from connected apps could cause Claude to take unintended actions without per-use approval.

Learn more

Disable this setting — when 'always allow' is available, prompt injections can manipulate Cowork to take actions via connectors without any opportunity for user approval.

Disable

Organization > Privacy Settings > Public Projects

All users in an organization can see and start chats in public projects. This will prevent users from creating chats with Cowork that leverage data from public projects.

Enable

Organization > Capabilities > Data Sources > Ask Organization

Allow your team members to search across your organization's connected data sources and knowledge bases for more comprehensive results. This will allow users to open Cowork chats based on trusted data from the Ask Organization interface. Note, in the real UI, this setting uses your organization name, e.x, “Ask PromptArmor”.

Settings for Claude Chat Only

Disable

Organization > Privacy Settings > Location Metadata

The risk of Claude having user-level metadata on location does not outweigh any benefits from localization; by turning it off, it allows users to determine when they want to share location-level data (e.g. via the chat) rather than having it by default

Disable

Organization > Privacy Settings > Share chats

Sharing chats increases the risk of data exposure between users of different privileges (although sharing is restricted to within the same organization.

Disable

Organization > Privacy Settings > Share Chats That Use Connectors

Disallows people from sharing chats that use connectors with others in your org. Recipients will see Claude's response, but not the data from the connector. Sharing chats increases the risk of data exposure outside of your tenant.

Enable

Organization > Capabilities > Claude Design

Allow team members to access Claude Design.

Disable

Organization > Claude in Slack > Allow Claude in Slack

Let members of your organization connect Claude to your Slack workspace and use the Claude bot.

Enable adoption while mitigating novel risks

We'll help you find the configuration that fits both.

Tier 3: Locked Down

Tier 3 prioritizes security above all else, disabling most dynamic or external-facing capabilities. Claude operates as a mostly self-contained assistant with no access to external data, executable code, or connected services. Prompt injection surface is minimal.

What's disabled:

  • Code execution and file creation (cloud) — no server-side code execution and file creation

  • Network egress — no package installs or external domain access from the sandbox

  • Skills — All skills blocked, including user-uploaded skills, and skill sharing is prohibited

  • Plugins — user-uploaded plugins blocked

  • Connectors and desktop extensions — no external service integrations

  • Always allow mode for connectors — prohibited, encouraging human in the loop approval

  • Skip all approvals mode — prohibited, encouraging human in the loop approval

  • Claude in Chrome — no browser automation

  • Ask Organization — users cannot access or start chats based on data from ‘Ask Organization’

  • Public Projects — users cannot access or start chats in shared projects

  • M365 Integration — users cannot orchestrate Claude in Excel or PowerPoint from Cowork

  • Claude in Design — disallowed reducing risk of injections or malicious code in externally-sourced assets

  • Claude in Slack — disallowed, limiting ingest of varied trust level data sources

  • Dispatch agents — disabled, preventing autonomous agents from interacting with one's computer without substantial oversight

What's enabled:

  • OTel monitoring — full observability with no functionality impact

  • Local Cowork operations — remain available (file access and chat attachments are user-level controls, not disabled by default)

NIST AI RMF Coverage with Tier 3 Configuration

Govern

1, 2, 3, 4, 5, 6

Map

1, 2, 3, 4, 5

Measure

1, 2, 3

Manage

1, 2, 3, 4

Required Settings for Tier 3

Settings for Cowork (and universal settings)

Disable

Organization > Privacy Settings > Rate Chats

This does not increase functionality, but increases the risk that some metadata or response feedback may be used by Anthropic to train their model

Disable

Organization > Privacy Settings > Public Projects

All users in an organization can see and start chats in public projects. This will prevent users from creating chats with Cowork that leverage data from public projects.

Disable

Organization > Capabilities > Data Sources > Ask Organization

This turns off the ability for your team members to search across your organization's connected data sources and knowledge bases for more comprehensive results. Those connected data sources increase the risk of indirect prompt injections

Disable

Organization > Office Agents > Let Claude Work Across Apps

Members can let Claude share context between apps like Excel and PowerPoint. Related:

AI in Excel and Google Sheets: Prompt Injection and Data Exfiltration Risks

Disable

Organization > Capabilities > Code Execution > Cloud Code Execution and File Creation

This setting allows Claude to execute code on a server and create and edit docs, spreadsheets, presentations, PDFs, and data reports. Required for skills to be enabled. Available on web and desktop. The setting is relevant as this must be toggled ‘on’ to enable skill uploads for Cowork.

Disable

Organization > Capabilities > Code Execution > Allow Network Egress

Give Claude network access to install packages and libraries in order to perform advanced data analysis, custom visualizations, and specialized file processing. Monitor chats closely as this comes with security risks. Alternatively, if specific domains must be accessible from the Cowork sandbox, configure: Enable : Organization > Capabilities > Code Execution > Allow Network Egress

Then configure

Organization > Capabilities > Code Execution > Allow Network Egress > Domain Allowlist > None

Additionally, add any approved domains the Cowork sandbox will need to access (e.g., to preview interactive content with external elements) to the ‘Additional allowed domains’ section. Related:

What domains should I add to my allowlist?

Enable

Organization > Cowork > Monitoring

Cowork supports OpenTelemetry (OTel) events for monitoring and observability. You can enable this for granular observability without impacting any functionality.

Configure

Organization > Libraries > Plugins

This allows you to block plugins for organization members. Note: during testing, when organization-level plugins were installed by default for users, it was observed that the org-level plugins were installed but did not appear operable without Skills enabled. Related:

Claude for Legal Risk

Disable

Organization > Cowork > Permissions > Allow "Act without asking" mode

When enabled, users can let Claude act without asking for approval—including using tools, editing files, and browsing websites. This can put organizational data at risk. Disable this setting — when 'always allow' is available, prompt injections can manipulate Claude to take sensitive actions on websites or perform destructive operations on local files in the connected Cowork folder without user consent.

Enable

Organization > Libraries > Connectors > Desktop Extension Allowlist

Limit the extensions that your team can install on their desktop. When enabled, users can only install desktop extensions that have been added to the list above. Via this allowlist, organizations should configure which desktop extensions they would like to allow. Note, ‘desktop extensions (DXT)’ are being renamed to MCP Bundles (MCPB). Related:

The Risks of Connectors in Your AI Applications

Configure

Organization > Libraries > Connectors > Add

Control which connectors your team members have access to. Use this menu to add connectors for use within one’s organization (if necessary). Related:

The Risks of Connectors in Your AI Applications

Disable

Organization > Cowork > Permissions > Allow “Always allow” for connector tools

Let members choose "Always allow" when approving connector tools in Cowork. This increases risk from prompt injection — content from connected apps could cause Claude to take unintended actions without per-use approval.

Learn more

Disable this setting — when 'always allow' is available, prompt injections can manipulate Cowork to take actions via connectors without any opportunity for user approval.

Disable

Organization > Cowork > Cowork > Enable Dispatch

Allow members to create persistent Cowork agents that can control their computer to autonomously work on tasks. Persistent agents receive instructions from any logged in device on the same account and can access files, apps and websites on their computer. Dispatch agents are prohibited, preventing autonomous agents with computer usage capabilities from operating a user's device without oversight (which carries significant risk as a prompt injection can manipulate Claude to interact with a user's apps, including taking screenshots or activating the user's keyboard).

Disable

Organization > Office Agents > Let Claude Work Across Apps

Members can let Claude share context between apps like Excel and PowerPoint. Related:

AI in Excel and Google Sheets: Prompt Injection and Data Exfiltration Risks

Disable

Organization > Libraries > Skills > Cloud Code Executions and File Creation

This allows Claude to execute code on a server and create and edit docs, spreadsheets, presentations, PDFs, and data reports. Required for skills to be enabled. Available on web and desktop. The setting is relevant as this must be toggled ‘on’ to enable skill uploads for Cowork. Note: This path reflects the setting when viewed from the desktop app. In the web browser, it is displayed as 'Code Execution and File Creation' (no 'Cloud').

Disable

Organization > Libraries > Skills > Skills

Turn skills on or off for everyone in your organization, including admin-managed organization skills. Requires 'Code execution and file creation' to be enabled to use. Skills might contain executable code. Team members should be careful when using skills from unknown sources.

Disable

Library > Skills > User-created skills

Allow team members to upload or create their own skills. Turn off to lock your org to approved skills only.

Disable

Library > Skills > Skill sharing

Allow team members to share skills with each other.

Disable

Library > Skills > Share with organization

Allow team members to share skills with the entire organization.

Configure

Organization > Libraries > Skills > Organization Skills

Manage skills that can be viewed and used by anyone in your organization. Select skills that have been vetted by one’s organization and add them to the organization-wide skill list.

Disable

[USER LEVEL SETTING] Cowork > New Chat > Work in a folder

Disallow users in Cowork from accessing and operating on the contents of a local directory.

Configure

[USER LEVEL SETTING] Cowork > New Chat > Plus Button

Disallow users in Cowork to add files and photos, include a Project, or select Connectors for the chat.

Disable

Organization > Claude in Chrome > Enable for your Team

Disallow team members from use the Claude in Chrome extension.

Set ‘Deny extension’

Organization > Claude in Chrome > Default for all sites > Allow/Deny Extension

Set deny to disallow Claude in Chrome for all sites.

Settings for Claude Chat Only

Disable

Organization > Privacy Settings > Location Metadata

The risk of Claude having user level metadata on location does not outweigh any benefits from localization; by turning it off, it allows users to determine when they want to share location level data (e.g. via the chat) rather than having it by default

Disable

Organization > Privacy Settings > Share chats

Sharing chats increases the risk of data exposure between users of different privileges (although sharing is restricted to within the same organization.

Disable

Organization > Privacy Settings > Share Chats That Use Connectors

Disallows people from sharing chats that use connectors with others in your org. Recipients will see Claude's response, but not the data from the connector. Sharing chats increases the risk of data exposure outside of your tenant.

Disable

Organization > Capabilities > Data Sources > Web Search

This turns off web search for users in Claude Chat (note that this does NOT apply to Cowork. Web Search is always enabled for Cowork)

Disable

Organization > Capabilities > Data Sources > Interactive Content

Let Claude display maps, images, and other visual content using third-party services. This does not apply to Cowork

Disable

Organization > Capabilities > Artifacts > Enable Artifact Connectors

EDIT 4/12/2026: This setting has been removed from Claude. Artifacts are no longer governable at the admin level. This turns off the ability for team members to work with artifacts that use data from external sources – as those external sources increase risk exposure to indirect prompt injections.

Disable

Organization > Capabilities > Memory > Enable memory for your team

Each team member's Claude can remember context from their own past chats. Memory stays private to each person.

Learn more

Disable

Organization > Capabilities > Claude Design

Allow team members to access Claude Design.

Disable

Organization > Claude in Slack > Allow Claude in Slack

Let members of your organization connect Claude to your Slack workspace and use the Claude bot.

Learn how to deploy securely in a sensitive tenant

Understand the specific configurations and requirements behind data processing, retention, and training guarantees.

Additional Controls and NIST Mappings

Beyond the Cowork-specific configurations above, the following infrastructure controls determine whether your tier configuration is actually enforceable. Without identity, access, monitoring, and data governance controls in place, even a Tier 3 lockdown can be circumvented; for example, by users switching to personal accounts.

These action items should be implemented regardless of which tier is selected, then combined with the tier-specific Cowork configurations.

NIST AI RMF Coverage Gained from Additional Controls Applied

Action

Configuration

NIST Mapping

Configure SSO and require it for Console and Claude

Enforces the organizational authentication boundary. Without SSO, users can authenticate outside org controls, undermining every tier configuration.

Configure

Organization > Organization and Access > SSO

Enable

Organization > Organization and Access > Require SSO for Console

Enable

Organization > Organization and Access > Require SSO for Claude

AI RMF · GOVERN 1 · MEASURE 2

Configure SCIM directory sync and enable group mappings

Automates account lifecycle and role assignment from your IdP. Ensures deprovisioned employees lose Cowork access immediately.

Configure

Organization > Organization and Access > SCIM (Directory Sync)

Configure

Organization > Organization and Access > Provisioning Mode > SCIM + Group Mapping

Enable

Organization > Organization and Access > Enable Group Mappings

AI RMF · GOVERN 2 · GOVERN 3

Configure IP allowlisting

Prevents access from untrusted networks or unmanaged devices.

Configure

Contact Sales

AI RMF · MEASURE 2

Restrict organization access and creation

Prevents shadow AI organizations under your domain, blocks personal account creation with org emails, and removes open invite paths that could allow unvetted users into the org.

Enable

Organization > Organization and Access > Security > Restrict Organization Creation

Disable

Organization > Organization and Access > Domains > Discoverable

Disable

Organization > Organization and Access > Organization Access > Invite Link

Disable

Organization > Organization and Access > Organization Access > Member Invite

AI RMF · GOVERN 1

Enable shortened session length

Limits session duration before reauthentication, reducing exposure window if a session is compromised.

Enable

Organization > Organization and Access > Security > Shortened Session Length

AI RMF · MEASURE 2

Configure RBAC with role-based feature access

Differentiate Code Execution, Memory, Web Search, Claude Code, and Cowork permissions by user group.

Configure

Organization > Custom Role > Create a Role > Code Execution & File Creation

Configure

Organization > Custom Role > Create a Role > Memory

Configure

Organization > Custom Role > Create a Role > Web Search

Configure

Organization > Custom Role > Create a Role > Claude Code

Configure

Organization > Custom Role > Create a Role > Cowork

AI RMF · GOVERN 3 · MAP 3

Enable the Compliance API

Streams compliance data from Claude Chat for visibility. Cowork activity is currently excluded, but this is critical for holistic monitoring of your Claude deployment.

Enable

Organization > Data and Privacy > Compliance API > Access

AI RMF · MEASURE 2 · MEASURE 3

Configure data retention and deletion policies

Define how long chats and uploads are retained. Enable separate retention periods for chats vs. projects to apply stricter retention to project data that may contain more sensitive or persistent context.

Configure

Organization > Data and Privacy > Privacy Settings > Retention Period for Chats and Projects

Enable

Organization > Data and Privacy > Privacy Settings > Separate Retention Periods

AI RMF · MANAGE 4 · GOVERN 6

Disable chat sharing

Disabling chat sharing prevents exposure of AI interaction data between users of different privilege levels. Disabling sharing of chats that use connectors is especially important as those chats may surface data from connected systems that the recipient should not have access to.

Disable

Organization > Privacy Settings > Share Chats

Disable

Organization > Privacy Settings > Share Chats That Use Connectors

AI RMF · MEASURE 2

Develop a phased rollout plan

Start with Cowork disabled, enable for a pilot group with restrictive settings, establish monitoring baselines, then expand based on observed risk.

N/A

AI RMF · GOVERN 1 · MANAGE 1

Conduct AI risk management training for Cowork users

Include prompt injection recognition, suspicious action identification, and safe file handling.

N/A

AI RMF · GOVERN 2

Establish an AI/Cowork-specific incident response plan

Define escalation paths, containment procedures (e.g., disabling Cowork org-wide), and communication protocols for prompt injection incidents or data exfiltration.

N/A

AI RMF · MANAGE 2 · MANAGE 4

Document accepted residual risks and define exit criteria

For each tier, document what risks remain unmitigated (e.g., audit log gap, prompt injection surface) and the conditions under which Cowork would be disabled.

AI RMF · MANAGE 1 · GOVERN 1

Mapping Claude to a specific framework or policy?

OWASP Top 10 for LLMs, ISO 42001, internal policies, and more.

Helpful Resources
NIST AI RMF 1.0NIST AI RMF PlaybookOWASP Top 10 for LLM ApplicationsMITRE ATLASRegulating AI Agents

All configurations, granularly

Organization

Privacy Settings

Rate Chats

Allow people to rate Claude's responses and share that feedback with Anthropic.

Cowork · Yes

Organization

Privacy Settings

Share chats

Allow people to share chats with others in your org.

Cowork · No

there is no option to share Cowork chats.

Organization

Privacy Settings

Share Chats That Use Connectors

Allow people to share chats that use connectors with others in your org. Recipients will see Claude's response, but not the data from the connector.

Cowork · No

there is no option to share Cowork chats.

Organization

Privacy Settings

Location Metadata

Allow Claude to use coarse location metadata (city/region) to improve product experiences for your team members.

Cowork · No

testing indicates metadata is not passed to Cowork as context.

Organization

Privacy Settings

Public Projects

All users in an organization can see and start chats in public projects.

Cowork · Yes

Users can start a Cowork session based on projects.

Organization

Capabilities

Data Sources

Web Search

Turn on web search for your team members.

Cowork · No

Web search is always enabled for Cowork.

Organization

Capabilities

Data Sources

Interactive Content

Let Claude display maps, images, and other visual content using third-party services.

Learn how your data is used

Cowork · No

Cowork does not display interactive inline content. Cowork creates files and supports an interactive viewer, which is a separate functionality.

Organization

Capabilities

Data Sources

Ask Organization

Allow your team members to search across your organization's connected data sources and knowledge bases for more comprehensive results.

Cowork · Yes

Users can start a Cowork session based on Ask Organization that carries organizational context to the Cowork session.

Organization

Capabilities

Visuals

Enable Artifact Connectors

Let team members work with artifacts that use data from external sources.

Learn more

EDIT 4/12/2026: This setting has been removed from Claude. Artifacts are no longer governable at the admin level.

Cowork · No

Cowork creates files and supports an interactive viewer, but these are not Artifacts.

Organization

Capabilities

Visuals

Inline visualizations

Allow Claude to generate interactive visualizations, charts, and diagrams directly in the conversation for members of your organization.

Cowork · No

Cowork creates files and supports an interactive viewer, but these are not 'Inline Visualizations'.

Organization

Capabilities

Claude Design

Allow team members to access Claude Design.

Cowork · No

Organization

Office Agents

Let Claude Work Across Apps

Members can let Claude share context between apps like Excel and PowerPoint. Related:

AI in Excel and Google Sheets: Prompt Injection and Data Exfiltration Risks

Cowork · Yes

Users can orchestrate Claude in Excel or PowerPoint via Cowork.

Organization

Capabilities

Code Execution

Cloud Code Execution and File Creation

Allow Claude to execute code on a server and create and edit docs, spreadsheets, presentations, PDFs, and data reports. Required for skills to be enabled. Available on web and desktop. Note: This path reflects the setting when viewed from the desktop app. In the web browser, it is displayed as 'Code Execution and File Creation' (no 'Cloud').

Cowork · Somewhat

Cowork can natively perform most of these capabilities locally, but this is relevant because the setting must be toggled 'on' to enable skill uploads, which are applicable to Cowork.

Organization

Capabilities

Code Execution

Allow Network Egress

Give Claude network access to install packages and libraries in order to perform advanced data analysis, custom visualizations, and specialized file processing. Monitor chats closely as this comes with security risks.

Cowork · Yes

Organization

Cowork

Enable for your Organization

Your network egress settings will apply. Cowork is a research preview—some enterprise features like audit logs, compliance API, and data exports are not currently available. Learn more about using Cowork safely

Cowork · Yes

Organization

Cowork

Permissions

Allow "Act without asking" mode

When enabled, users can let Claude act without asking for approval—including using tools, editing files, and browsing websites. This can put organizational data at risk.

Cowork · Yes

Organization

Cowork

Permissions

Allow “Always allow” for connector tools

Let members choose "Always allow" when approving connector tools in Cowork. This increases risk from prompt injection — content from connected apps could cause Claude to take unintended actions without per-use approval.

Learn more

Cowork · Yes

Organization

Cowork

Cowork

Enable Dispatch

Allow members to create persistent Cowork agents that can control their computer to autonomously work on tasks. Persistent agents receive instructions from any logged in device on the same account and can access files, apps and websites on their computer.

Cowork · Yes

Organization

Cowork

Monitoring

Cowork supports OpenTelemetry (OTel) events for monitoring and observability. Cowork reuses Claude Code's OTel events schema via the Claude Agent SDK. Learn more

Cowork · Yes

Organization

Libraries

Plugins

Allows organizations to designate plugins that will be blocked, automatically installed, or made optionally available to organization members. Note: during testing, when organization-level plugins were installed by default for users, it was observed that the org-level plugins were installed but did not appear operable without Skills enabled. Related:

Claude for Legal Risk

Cowork · Yes

Organization

Libraries

Connectors

Control which web and desktop connectors your team members have access to. Related:

The Risks of Connectors in Your AI Applications

Cowork · Yes

Organization

Libraries

Connectors

Desktop Extension Allowlist

Limit the desktop extensions that your team can install on their desktop. When enabled, users can only install desktop extensions that have been added to the list above. Related:

The Risks of Connectors in Your AI Applications

Cowork · Yes

Organization

Libraries

Skills

Cloud Code Execution and File Creation

Allow Claude to execute code on a server and create and edit docs, spreadsheets, presentations, PDFs, and data reports. Required for skills to be enabled. Available on web and desktop. Note: This path reflects the setting when viewed from the desktop app. In the web browser, it is displayed as 'Code Execution and File Creation' (no 'Cloud').

Cowork · Somewhat

Cowork can natively perform most of these capabilities locally, but this is relevant because the setting must be toggled 'on' to enable skill uploads, which are applicable to Cowork.

Organization

Libraries

Skills

Skills

Turn skills on or off for everyone in your organization, including admin-managed organization skills. Requires 'Code execution and file creation' to be enabled to use. Skills might contain executable code. Team members should be careful when using skills from unknown sources. Note: during testing, it was observed that disabling this setting served to prevent users from adding their own plugins.

Cowork · Yes

In order for skills to be uploaded, this setting must be enabled. In order for plugins to be used, this setting must be enabled.

Organization

Libraries

Skills

User-created skills

Allow team members to upload or create their own skills. Turn off to lock your org to approved skills only.

Cowork · Yes

Organization

Libraries

Skills

Skill sharing

Allow team members to share skills with each other.

Cowork · Yes

Organization

Libraries

Skills

User-created skills

Allow team members to share skills with the entire organization.

Cowork · Yes

Organization

Libraries

Skills

Organization Skills

Manage skills that can be viewed and used by anyone in your organization.

Cowork · Yes

Cowork

New Chat

Work in a folder

Allows Cowork to access and operate on the contents of a local directory.

Cowork

New Chat

Plus Button

Allows users to add files and photos, include a Project, or select Connectors for the chat.

Cowork

New Chat

Model Selection

Allows users to select what model will be used for Cowork's response.

Organization

Claude in Chrome

Enable for your Team

Allow team members to use the Claude in Chrome extension. Configure site permissions after enabling.

Cowork · Yes

Organization

Claude in Chrome

Default for all sites

Allow/Deny Extension

Set default access for your team Note: During testing, inconsistent behavior was observed from this setting.

Cowork · Yes

Organization

Claude in Chrome

Allowed Sites/Blocked Sites

Claude in Chrome can/cannot (depending on whether the default is allow or deny) be used on these websites. Notable User Level Items: Note: During testing, inconsistent behavior was observed from this setting.

Cowork · Yes

Organization

Claude in Slack

Allow Claude in Slack

Let members of your organization connect Claude to your Slack workspace and use the Claude bot.

Cowork · No

Organization

Capabilities

Memory

Enable memory for your team

Each team member's Claude can remember context from their own past chats. Memory stays private to each person.

Learn more

Cowork · No

Claude Cowork Security FAQ

Claude Cowork introduces a fundamentally different threat surface than a standard chatbot. It is a local AI agent that can execute code in a VM, read and write files on the user's machine, browse the web with the user's cookies, and run scheduled tasks unattended. The primary risks are: Prompt injection — Anthropic identifies this as the primary risk. Malicious instructions hidden in documents, emails, or web pages can hijack Claude's actions. Anthropic self-reports an approximately 1% attack success rate on Claude in Chrome specifically, even after mitigations. In January 2026, research demonstrated that indirect prompt injection could cause Cowork to upload user files to an attacker-controlled Anthropic account. Audit gap — Cowork activity is not captured in Anthropic's Audit Logs, Compliance API, or Data Exports. Monitoring limitations — Anthropic's own safety guidance acknowledges that 'you shouldn't expect to validate every individual command' — instead advising users to watch for unexpected patterns. Personal account use — On non-Enterprise plans, tenant restrictions are not available, meaning users can switch to a personal Pro/Max account on the same machine outside of organizational controls.

No. Anthropic explicitly states: do not enable Cowork for regulated workloads. Cowork activity is excluded from all three governance mechanisms: Audit Logs, Compliance API, and Data Exports. Until Anthropic closes the audit log gap, Cowork cannot satisfy the logging and monitoring requirements of SOC 2, HIPAA, GDPR, or similar frameworks.

Cowork stores conversation history locally on users' computers. Per Anthropic, this data is not subject to Anthropic's standard data retention policies and cannot be centrally managed or exported by admins. This is a different model than cloud-hosted Claude conversations — admins should understand that Cowork data governance follows local device management, not Anthropic's cloud retention controls. Anthropic does provide OpenTelemetry integration that tracks usage, costs, and tool activity for Cowork. Organizations should review Anthropic's current data usage policy and Commercial Terms of Service to confirm training opt-out status for their specific plan tier.

You control which local files Claude can access. However, there are important caveats beyond folder access. Cowork can browse the web using your cookies and session state via Claude in Chrome — and when JavaScript execution is enabled for a site, Claude can access the same data your browser can on that page, including login sessions and stored website data. Cowork can also interact with connected MCP and plugin integrations, which Anthropic warns 'expand what Claude can do, but each one introduces new ways for attacks to reach Claude.' The effective data exposure is the union of shared folders, browser session access, and any connected integrations — not just the folders you designate.

The most notable differential: on Team plans, Chrome is on by default, and there is no mechanism to prevent users from switching to a personal account. Enterprise plans are required for tenant restrictions. Disable Cowork entirely — Available on both Team and Enterprise. Chrome extension — Enabled by default on Team, disabled by default on Enterprise. Tenant restrictions — Not available on Team. Available on Enterprise only. Chrome site allowlists/blocklists — Available on both. Plugin marketplace management — Available on both. OpenTelemetry monitoring — Available on both. Audit logs for Cowork activity — Not available on either plan.

Cowork toggle — Organization owners navigate to Organization settings > Capabilities to toggle Cowork off entirely. Per Anthropic, Cowork will be on by default when the research preview launches. Granular per-user or per-role controls are not available during the research preview. Chrome extension — Managed separately from Cowork itself. On Enterprise plans, it is disabled by default. On Team plans, it is enabled by default. Admins can configure site allowlists and blocklists via Organization settings > Claude in Chrome. Tenant restrictions — Enterprise-only. Configure your network proxy to inject the anthropic-allowed-org-ids header for Claude traffic. Supported on Zscaler, Palo Alto Prisma, Cato Networks, Netskope, and generic HTTPS proxies. TLS inspection is required. Plugin management — Owners can create curated plugin marketplaces with per-plugin controls: auto-install, available, or not available.

This is the most significant operational gap. Anthropic explicitly states that Cowork activity is not captured in Audit Logs, Compliance API, or Data Exports, and that if your organization requires audit trails for compliance purposes, do not enable Cowork for regulated workloads. The one monitoring mechanism Anthropic does provide is OpenTelemetry: Team and Enterprise owners can track usage, costs, and tool activity across their teams. However, Anthropic is clear that this doesn't replace audit logging for compliance purposes. Beyond what Anthropic provides, organizations should evaluate whether their existing endpoint security stack — EDR, DLP, network monitoring — provides sufficient compensating visibility for Cowork's local activity before enabling it beyond a pilot.

Prompt injection risk with Cowork is categorically higher than with the standard Claude chatbot because there are more ways Cowork can act. It reads, writes, and deletes files, browses the web, executes code, and interacts with external systems. A successful prompt injection in Cowork can exfiltrate files, delete data, send messages on your behalf, or execute code. The attack surface includes any untrusted content that enters Claude's context: web pages visited through Chrome, documents opened for processing, emails, and files from shared drives. Anthropic deploys content classifiers that scan untrusted input and flag potential injections, but their own reporting acknowledges a non-zero success rate — approximately 1% attack success against their internal Best-of-N attacker for Claude in Chrome.

Yes. In January 2026, two days after Cowork's launch, PromptArmor demonstrated that Claude Cowork could be manipulated through indirect prompt injection to exfiltrate user files. The attack chain worked as follows: 1. The attacker hides malicious instructions in a document or web page that Claude processes. 2. The injection instructs Claude to use curl to upload specified files to the Anthropic file upload API. 3. The injection provides the attacker's API key, so files are uploaded to the attacker's account. 4. Cowork's VM restricted outbound network access to most domains, but the Anthropic API was accessible from within the VM — so the upload succeeded. For the full technical write-up, see the PromptArmor

research blog

Anthropic's own safety guidance warns that desktop extensions (MCPs) and plugins expand what Claude can do, but each one introduces new ways for attacks to reach Claude. Plugins bundle skills, connectors, and sub-agents into a single package, meaning a single install can significantly expand Cowork's scope of action. Anthropic recommends sticking to verified extensions from the Claude Desktop directory, carefully evaluating the permissions any extension or plugin requests before installing, and using plugin marketplace controls to set per-plugin installation preferences. For organizations, the key risk is that an employee installing an unvetted MCP server or plugin creates an uncontrolled integration point that bypasses your evaluated security posture. Related:

The Risks of Connectors in Your AI Applications

This depends on your risk tolerance, plan tier, and use case. Allow with controls if — You are on an Enterprise plan, can enforce tenant restrictions, have curated your plugin marketplace, have OpenTelemetry configured, and the use case involves non-sensitive, non-regulated data. Allow in limited pilot if — You are on a Team plan, can accept the lack of tenant restrictions, and want to evaluate productivity gains in a limited environment (e.g., non-sensitive local folders only) with Claude in Chrome disabled. Do not allow yet if — Your workloads involve regulated data (HIPAA, PCI, SOX), you require audit trails for compliance, you cannot deploy compensating monitoring controls, or you are on a plan tier that lacks admin controls. We recommend against treating the Cowork decision as binary (allow/block). A phased rollout is more practical: start with Cowork disabled, enable it for a pilot group with restrictive settings, establish monitoring, then expand based on observed risk.

Research preview means Cowork is not yet a generally available, production-grade product. Concretely: - Security controls and features are still being developed — granular controls by user or role are not available during the research preview. - The audit log gap is acknowledged but not yet resolved. - Prompt injection risk remains non-zero. - Cowork's behavior and capabilities may change between preview updates. For TPRM purposes, treat Cowork as you would any pre-GA vendor capability: document the accepted risk, establish compensating controls, define exit criteria for when you would disable it, and review the risk posture at each Anthropic product update.

On Enterprise plans, you can enforce tenant restrictions via HTTP header injection that prevents users from authenticating with non-organizational accounts. This is the only reliable control. On Team plans, there is no mechanism to prevent this. A user can sign out of the organizational account, sign into a personal Pro or Max account, and use Cowork with zero organizational guardrails: no connector restrictions, no defensive instructions, no admin visibility. All file access is governed by the user's OS-level permissions. This is why Enterprise-tier deployment is strongly recommended for organizations with sensitive data on employee machines.

Both products can execute code, both can integrate with the Claude in Chrome extension with its associated prompt injection risks, and both can run tasks without active user supervision. The Claude Code CLI runs on a user's device with access to the local file system. Claude Code via the Desktop can use a cloud VM environment and also operate on local directories. Claude Cowork runs a local VM with optional access to a local directory, but for some features like skills, code execution can occur in the cloud. Organizations deploying both products should evaluate each independently within the context of what features and configurations will be enabled or restricted, rather than seeking to discern if one is categorically safer than the other. One important note: Anthropic explicitly states that Cowork activity is not captured in Audit Logs, Compliance API, or Data Exports. Claude Code does not carry the same exclusion in Anthropic's documentation. This means organizations should understand that their ability to audit and govern Cowork activity is currently more limited than for Claude Code.

来源:PromptArmor:Threat Intelligence · promptarmor.com

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