9.4 Incident Response Playbook¶
When a Liveness Bypass Is Discovered¶
graph TD
A["🚨 Bypass<br>Detected"] --> B["1. CONTAIN<br>(Disable affected<br>attack vector)"]
B --> C["2. ASSESS<br>(How many accounts<br>affected?)"]
C --> D["3. NOTIFY<br>(Regulator, CISO,<br>Board)"]
D --> E["4. REMEDIATE<br>(Patch model,<br>update thresholds)"]
E --> F["5. RE-VERIFY<br>(Review affected<br>accounts)"]
F --> G["6. REPORT<br>(Root cause,<br>lessons learned)"]Response Timeline¶
| Action | SLA | Responsible |
|---|---|---|
| Initial detection and triage | < 1 hour | Security Operations Center |
| Contain (disable vulnerable vector) | < 4 hours | Engineering + SecOps |
| Impact assessment (how many affected) | < 24 hours | Fraud + Engineering |
| Regulator notification (if required) | < 72 hours (GDPR), varies by jurisdiction | Compliance |
| Model patch deployed | < 1 week | ML Engineering |
| Affected account re-verification | < 2 weeks | Operations + Fraud |
| Root cause analysis report | < 30 days | Security + Engineering |
Communication Templates¶
Regulator Notification (Template)
Subject: Biometric Verification System Security Incident Notification
Key information to include: - Date and time of discovery - Nature of the vulnerability - Number of potentially affected accounts - Immediate containment actions taken - Remediation plan and timeline - Customer impact assessment - Ongoing monitoring measures