Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment
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docs/CCIP_SECURITY_BEST_PRACTICES.md
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docs/CCIP_SECURITY_BEST_PRACTICES.md
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# CCIP Security Best Practices
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**Date**: 2025-01-12
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**Network**: ChainID 138
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---
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## Overview
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This document outlines security best practices for CCIP (Cross-Chain Interoperability Protocol) setup and operations.
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---
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## Access Control
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### Contract Ownership
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1. **Use Multi-Sig Wallets**
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- Use multi-sig for contract owners
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- Require multiple signatures for critical operations
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- Recommended: 2-of-3 or 3-of-5 multi-sig
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2. **Secure Private Keys**
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- Store private keys in hardware wallets
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- Use secure key management systems
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- Never commit private keys to version control
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3. **Timelock Critical Operations**
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- Use timelock for ownership transfers
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- Use timelock for configuration changes
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- Allow time for review before execution
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4. **Monitor Owner Changes**
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- Set up alerts for ownership transfers
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- Verify ownership changes are legitimate
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- Document all ownership changes
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### Function Access
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1. **Use Access Modifiers**
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- Properly implement `onlyOwner` modifiers
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- Use role-based access control where appropriate
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- Validate all function inputs
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2. **Limit Admin Functions**
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- Minimize number of admin functions
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- Require multiple approvals for critical changes
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- Document all admin functions
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---
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## Configuration Security
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### Bridge Configuration
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1. **Verify Destination Addresses**
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- Double-check all destination bridge addresses
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- Verify addresses on destination chains
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- Test with small amounts first
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2. **Secure Configuration Updates**
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- Use timelock for configuration changes
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- Require multiple approvals
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- Test changes on testnet first
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3. **Monitor Configuration**
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- Track all configuration changes
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- Alert on unexpected changes
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- Regular configuration audits
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### Rate Limits
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1. **Set Appropriate Limits**
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- Base limits on expected usage
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- Include safety margins
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- Review limits regularly
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2. **Monitor Rate Limit Usage**
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- Track rate limit usage
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- Alert when approaching limits
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- Adjust limits proactively
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---
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## Token Security
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### Token Mechanisms
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1. **Verify 1:1 Backing**
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- Regularly verify token backing
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- Monitor contract balances
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- Alert on backing discrepancies
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2. **Secure Token Transfers**
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- Validate all token transfers
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- Use secure transfer functions
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- Monitor transfer patterns
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### Token Pools
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1. **Monitor Pool Balances**
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- Track pool balances
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- Alert on low balances
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- Maintain adequate liquidity
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2. **Secure Pool Operations**
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- Limit pool admin functions
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- Require approvals for large operations
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- Monitor pool activity
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---
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## Fee Security
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### Fee Payment
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1. **Verify LINK Balance**
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- Monitor LINK token balances
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- Maintain adequate reserves
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- Alert on low balances
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2. **Secure Fee Calculation**
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- Verify fee calculation logic
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- Monitor fee changes
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- Document fee structure
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---
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## Monitoring and Alerting
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### Event Monitoring
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1. **Monitor All Events**
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- Track all contract events
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- Monitor for unusual patterns
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- Alert on critical events
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2. **Message Tracking**
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- Track all CCIP messages
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- Monitor message delivery
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- Alert on failed messages
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### Health Checks
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1. **Regular Health Checks**
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- Run health checks regularly
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- Verify all components
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- Document health status
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2. **Automated Monitoring**
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- Set up automated monitoring
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- Configure alerts
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- Review alerts regularly
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---
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## Incident Response
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### Preparation
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1. **Incident Response Plan**
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- Document incident response procedures
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- Define roles and responsibilities
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- Prepare communication templates
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2. **Backup and Recovery**
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- Regular backups of configuration
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- Document recovery procedures
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- Test recovery procedures
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### Response
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1. **Detection**
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- Monitor for security incidents
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- Verify incident details
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- Assess impact
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2. **Containment**
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- Isolate affected systems
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- Prevent further damage
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- Preserve evidence
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3. **Recovery**
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- Restore from backups
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- Verify system integrity
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- Resume operations
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4. **Post-Incident**
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- Document incident
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- Analyze root cause
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- Implement improvements
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---
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## Code Security
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### Smart Contract Security
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1. **Code Audits**
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- Professional security audits
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- Regular code reviews
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- Automated security scanning
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2. **Best Practices**
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- Follow Solidity best practices
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- Use established patterns
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- Avoid known vulnerabilities
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3. **Testing**
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- Comprehensive test coverage
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- Test edge cases
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- Test error scenarios
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### Script Security
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1. **Input Validation**
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- Validate all inputs
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- Sanitize user input
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- Handle errors gracefully
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2. **Secure Storage**
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- Never commit private keys
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- Use environment variables
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- Secure configuration files
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---
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## Operational Security
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### Key Management
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1. **Hardware Wallets**
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- Use hardware wallets for production
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- Secure backup procedures
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- Document key locations
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2. **Key Rotation**
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- Regular key rotation
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- Secure key disposal
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- Document key changes
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### Access Management
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1. **Principle of Least Privilege**
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- Grant minimum necessary access
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- Review access regularly
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- Revoke unused access
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2. **Access Logging**
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- Log all access attempts
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- Monitor access patterns
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- Alert on suspicious activity
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---
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## Compliance and Documentation
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### Documentation
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1. **Security Documentation**
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- Document security procedures
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- Document access control
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- Document incident response
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2. **Regular Updates**
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- Keep documentation current
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- Review documentation regularly
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- Update as needed
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### Compliance
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1. **Regulatory Compliance**
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- Understand applicable regulations
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- Implement compliance measures
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- Regular compliance reviews
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---
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## Related Documentation
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- [CCIP Access Control](./CCIP_ACCESS_CONTROL.md) (Task 124)
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- [CCIP Security Incident Response](./CCIP_SECURITY_INCIDENT_RESPONSE.md) (Task 130)
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- [CCIP Configuration Status](./CCIP_CONFIGURATION_STATUS.md)
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---
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**Last Updated**: 2025-01-12
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