Incident Response Plan

Document ID: ISMS-POL-003
Version: 1.0
Effective Date: December 29, 2025
Review Date: December 29, 2026
Classification: Internal

1. Purpose#

This Incident Response Plan establishes procedures for detecting, responding to, and recovering from information security incidents affecting anonym.legal systems and data.

2. Scope#

This plan covers:

• Security incidents affecting the anonym.legal platform
• Data breaches involving customer PII
• System compromises and unauthorized access
• Service disruptions affecting availability
• Malware and ransomware incidents

3. Incident Classification#

3.1 Severity Levels#

3.2 Incident Categories#

4. Incident Response Team#

4.1 Roles and Responsibilities#

4.2 Contact Information#

Incident response contacts maintained in secure internal documentation.

5. Incident Response Phases#

5.1 Phase 1: Detection and Identification#

Objectives:

• Detect security events through monitoring
• Identify and classify incidents
• Initial assessment of impact

Activities:

1. Monitor alerts from:

   • System logs (journalctl)
   • Application logs
   • Security monitoring (brute force protection)
   • Uptime monitoring
   • Error tracking (Sentry)

2. Initial triage:

   • Verify incident is genuine
   • Classify severity level
   • Document initial findings

3. Notification:

   • Alert incident response team
   • Escalate based on severity

5.2 Phase 2: Containment#

Objectives:

• Limit incident impact
• Preserve evidence
• Prevent further damage

Short-term Containment:

• Block malicious IP addresses (firewall/brute force protection)
• Disable compromised accounts
• Isolate affected systems
• Revoke compromised credentials

Long-term Containment:

• Apply temporary patches
• Implement additional monitoring
• Prepare for recovery

5.3 Phase 3: Eradication#

Objectives:

• Remove threat from environment
• Address root cause
• Verify threat elimination

Activities:

1. Remove malware/unauthorized access
2. Patch vulnerabilities
3. Reset compromised credentials
4. Update security configurations
5. Verify system integrity

5.4 Phase 4: Recovery#

Objectives:

• Restore normal operations
• Verify system security
• Monitor for recurrence

Activities:

1. Restore from clean backups (Hetzner snapshots)
2. Rebuild affected systems
3. Validate system functionality
4. Implement enhanced monitoring
5. Gradual service restoration

5.5 Phase 5: Post-Incident#

Objectives:

• Document lessons learned
• Improve security posture
• Update procedures

Activities:

1. Incident documentation
2. Root cause analysis
3. Lessons learned meeting
4. Update security controls
5. Update incident response procedures

6. Communication Procedures#

6.1 Internal Communication#

6.2 External Communication#

6.3 Notification Template (Data Breach)#

Subject: Security Notification - anonym.legal

Dear [Customer],

We are writing to inform you of a security incident affecting your account.

What happened: [Description]
When: [Date/Time]
What data was affected: [Details]
What we are doing: [Actions taken]
What you should do: [Recommendations]

We apologize for any inconvenience and are committed to protecting your data.

For questions, contact: security@anonym.legal

7. Evidence Preservation#

7.1 Evidence Collection#

• System logs
• Network traffic captures
• Memory dumps (if applicable)
• File system snapshots
• Authentication logs

7.2 Chain of Custody#

• Document all evidence handling
• Maintain integrity hashes
• Secure storage of evidence
• Access logging

8. Specific Incident Procedures#

8.1 Data Breach Response#

1. Immediate Actions:

   • Identify scope of breach
   • Contain data exposure
   • Preserve evidence

2. Assessment:

   • Determine data types affected
   • Identify affected individuals
   • Assess regulatory obligations

3. Notification:

   • Notify affected individuals (within 72 hours)
   • Report to supervisory authority (GDPR)
   • Document all notifications

8.2 Account Compromise Response#

1. Immediate Actions:

   • Lock affected account
   • Force password reset
   • Review account activity

2. Investigation:

   • Determine method of compromise
   • Check for lateral movement
   • Review related accounts

3. Remediation:

   • Reset credentials
   • Enable 2FA
   • Notify user

8.3 DDoS Attack Response#

1. Immediate Actions:

   • Activate DDoS protection
   • Implement rate limiting
   • Contact hosting provider (Hetzner)

2. Mitigation:

   • Block malicious traffic
   • Scale resources if needed
   • Monitor attack patterns

3. Recovery:

   • Verify service restoration
   • Analyze attack vectors
   • Update protections

9. Testing and Maintenance#

9.1 Testing Schedule#

• Tabletop exercises: Quarterly
• Technical drills: Bi-annually
• Full simulation: Annually

9.2 Plan Maintenance#

• Review after each incident
• Annual comprehensive review
• Update contact information monthly

10. Document Control#