COLLAB-013: Chat external file sharing disabled (GWS.CHAT.2.1)
- Platform
- Google Workspace
- Category
- Collaboration
- Severity
- High
- Zero Trust pillar
- Data (weight 3)
- Golden fixtures
- 3
- Branch coverage
- Observed: fixtures prove the verdicts they exercise
- Provenance
- baseline
What it checks
SCuBA GWS.CHAT.2.1 requires that external file sharing in Google Chat be disabled (set to no files). Allowing files to be shared with external users through Chat is a direct data-exfiltration path. This check reads chat.chat_file_sharing and fails any organizational unit where external file sharing is not set to NO_FILES.
Recommended value
External file sharing in Chat set to NO_FILES
Remediation
In the Admin console under Apps > Google Workspace > Google Chat > External file sharing, set external file sharing to 'No files' so files cannot be shared to people outside the organization via Chat.
Fixture-proven verdicts
Every verdict below is proven by a golden fixture in the module's gating test suite. This table derives from the last green run; it cannot be edited by hand.
| Scenario | Expected verdict |
|---|---|
| clean | PASS |
| known-bad | FAIL |
| no-data | Not Assessed |
Framework mappings
- CISA SCuBA
- GWS.CHAT.2.1v1
- NIST SP 800-53
- AC-4, SC-7
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