CHAIN-191 — Secure Score low + no remediation tracking

Summary

Severity: Medium · Likelihood: High · Logic: ALL

Why this chain matters

Defender Secure Score is below 40% for months with no remediation trend. The control plane knows what's broken but nobody's assigned to fix it. Every vulnerability the score reflects remains live.

Component rules

This chain fires when its trigger conditions are met by the following rules. Click any rule to see its detection logic and compliance mappings.

Rule ID	Role
zt_vis_005	Trigger
zt_vis_002	Trigger

Attack walkthrough

Step 1 — Recommendations accumulate; score stays flat.

Actor: Time
MITRE ATT&CK: T1562
Enabled by: zt_vis_005

Attacker gain: Stagnant risk posture.

Step 2 — Exploit any of the documented gaps.

Actor: Attacker
MITRE ATT&CK: T1190
Enabled by: zt_vis_002

Attacker gain: Easy target selection.

Blast radius

Initial access	Any exploitable recommendation.
Max privilege	Variable by recommendation.
Data at risk	Whatever the recommendations flag
Services at risk	Subscription-wide

How the logic works

The chain fires only when every rule above has at least one finding in the current scan. Missing any one rule breaks the chain — so remediating any single step disrupts the attack path.