smom-dbis-138/docs/operations/EMERGENCY_RESPONSE.md

Emergency Response Procedures

Overview

This document outlines emergency response procedures for the trustless bridge system, including incident response, pause procedures, and recovery steps.

Emergency Contacts

• Security Team: security@d-bis.org
• Operations Team: ops@d-bis.org
• On-Call Engineer: [Contact Information]

Incident Classification

Critical (P0)

• Active exploit detected
• Funds at risk
• System compromise
• Immediate action required

High (P1)

• Potential security vulnerability
• System instability
• Significant service degradation
• Action required within 1 hour

Medium (P2)

• Minor security issue
• Performance degradation
• Action required within 24 hours

Low (P3)

• Documentation issues
• Non-critical bugs
• Action required within 1 week

Emergency Procedures

1. Pause Bridge Operations

When to Use: Active exploit, security incident, or critical bug detected

Procedure:

1. Immediate Actions:

   # Use multisig to pause contracts
   ./scripts/bridge/trustless/multisig/propose-pause.sh \
     <multisig_address> \
     <contract_address> \
     "Emergency pause - [reason]"
   

2. Verify Pause:

   cast call <contract_address> "paused()" --rpc-url $ETHEREUM_RPC
   # Should return: 0x0000000000000000000000000000000000000000000000000000000000000001
   

3. Notify Stakeholders:

   • Send alert to all users
   • Post status update
   • Notify security team
   • Document incident

4. Investigate:

   • Assess impact
   • Identify root cause
   • Develop fix
   • Test fix thoroughly

5. Resume Operations (after fix):

   # Unpause contracts
   cast send <contract_address> "unpause()" \
     --rpc-url $ETHEREUM_RPC \
     --private-key $PRIVATE_KEY
   

2. Emergency Withdrawal for LPs

When to Use: Liquidity pool at risk, emergency situation

Procedure:

1. Assess Situation:

   • Check liquidity pool status
   • Verify minimum ratio
   • Calculate available withdrawals

2. Emergency Withdrawal (if mechanism exists):

   # If emergency withdrawal function exists
   cast send <liquidity_pool_address> "emergencyWithdraw(uint256)" <amount> \
     --rpc-url $ETHEREUM_RPC \
     --private-key $PRIVATE_KEY
   

3. Manual Recovery (if needed):

   • Coordinate with LPs
   • Process withdrawals manually
   • Document all actions

3. Incident Response Playbook

Step 1: Detection

• Monitor alerts and logs
• Identify incident type
• Classify severity

Step 2: Containment

• Pause affected systems
• Isolate affected components
• Prevent further damage

Step 3: Investigation

• Gather evidence
• Analyze logs and transactions
• Identify root cause
• Assess impact

Step 4: Remediation

• Develop fix
• Test fix thoroughly
• Deploy fix
• Verify fix works

Step 5: Recovery

• Resume operations gradually
• Monitor closely
• Verify system health

Step 6: Post-Incident

• Document incident
• Conduct post-mortem
• Implement improvements
• Update procedures

Common Scenarios

Scenario 1: Fraudulent Claim Detected

1. Detection: Challenge submitted with valid fraud proof
2. Automatic Action: Bond slashed automatically
3. Manual Action: Monitor for patterns, investigate relayer
4. Prevention: Review relayer activity, consider blacklisting

Scenario 2: Smart Contract Bug

1. Detection: Unexpected behavior, failed transactions
2. Immediate Action: Pause affected contracts
3. Investigation: Analyze bug, assess impact
4. Fix: Deploy fix or workaround
5. Recovery: Unpause after fix verified

Scenario 3: Liquidity Crisis

1. Detection: Liquidity pool below minimum ratio
2. Immediate Action: Block withdrawals, alert LPs
3. Recovery: Encourage LP deposits, adjust parameters if needed
4. Prevention: Monitor liquidity ratios, set alerts

Scenario 4: RPC Outage

1. Detection: RPC health checks failing
2. Immediate Action: Switch to backup RPC
3. Recovery: Restore primary RPC, verify connectivity
4. Prevention: Use multiple RPC providers, monitor health

Communication Plan

Internal Communication

1. Immediate: Notify on-call engineer
2. Within 15 minutes: Notify security team
3. Within 1 hour: Notify management
4. Ongoing: Regular status updates

External Communication

1. Users: Status page, social media, email
2. Partners: Direct communication
3. Public: Transparent updates (without revealing sensitive details)

Recovery Procedures

After Pause

1. Verify Fix: Ensure issue is resolved
2. Test Thoroughly: Test all functionality
3. Gradual Rollout: Resume with small limits
4. Monitor Closely: Watch for issues
5. Full Resume: Gradually increase limits

After Incident

1. Post-Mortem: Document lessons learned
2. Improvements: Implement fixes and improvements
3. Monitoring: Enhance monitoring and alerts
4. Training: Update team training

Prevention

Regular Activities

• Security audits
• Code reviews
• Testing
• Monitoring
• Documentation updates

Best Practices

• Defense in depth
• Principle of least privilege
• Regular backups
• Disaster recovery testing
• Incident response drills

References

• Multisig Operations: docs/bridge/trustless/MULTISIG_OPERATIONS.md
• Security Documentation: docs/bridge/trustless/SECURITY.md
• Monitoring Setup: docs/monitoring/MONITORING_SETUP.md