GTRADE-002: Internet-Readable Google Groups
- Platform
- Google Workspace
- Category
- Adversary Tradecraft
- Severity
- High
- Zero Trust pillar
- Visibility & Analytics (weight 2)
- Golden fixtures
- 3
- Branch coverage
- Observed: fixtures prove the verdicts they exercise
- Provenance
- baseline
What it checks
Groups whose topics are viewable by 'anyone on the internet' silently leak their entire message history — a class that has exposed thousands of organizations' internal mail (financials, credentials, PII). Google provides no native alert for this exposure.
Recommended value
No group viewable by anyone on the internet (whoCanViewGroup not ANYONE_CAN_VIEW)
Remediation
Apps > Google Workspace > Groups for Business > Sharing settings, and per-group access settings: set 'Who can view conversations' away from 'Anyone on the internet' to members/organization only.
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
- NIST SP 800-53
- AC-22, AC-3
- CIS Benchmark
- 1.x
- MITRE ATT&CK
- T1213