zt_vis_005 — Activity log retention appears insufficient¶
Summary
Severity: Medium · Pillar: Visibility · Chain role: ENABLER
Description¶
A very small activity log sample (<100 events) suggests short retention or limited ingestion; compliance frameworks require 90+ days of activity history.
Mapping¶
| Framework | Control / Reference |
|---|---|
| NIST 800-53 | AU-11 |
| NIST 800-207 | Tenet 5 - Integrity monitored |
| CIS Azure | — |
| MITRE ATT&CK Technique | T1562 |
| MITRE ATT&CK Tactic | Defense Evasion |
| Zero-Trust Tenet | Tenet 5 |
| Framework tags | nist-800-207, argus-zt |
Source¶
Rule defined at policies/azure/zt/visibility/zt_vis_005.rego.