Multi-Layer Security Architecture
Protecting a cryptocurrency exchange requires defense in depth: network-level DDoS mitigation, application-layer web application firewalls, database encryption at rest and in transit, and physical security for hardware security modules. Implement zero-trust networking where every access request is authenticated and authorized regardless of source location.
Asset Custody
Store 95% or more of crypto assets in cold storage using air-gapped signing devices and multi-signature schemes requiring 3-of-5 authorized signers. Hot wallets should hold only enough liquidity for immediate withdrawal processing. Implement automated rebalancing between hot and cold wallets based on configurable thresholds and time-of-day patterns.
Monitoring and Incident Response
Deploy real-time transaction monitoring systems that flag unusual patterns: large withdrawals, rapid sequential transactions, or activity from sanctioned addresses. Establish circuit breakers that automatically pause withdrawals when anomaly scores exceed thresholds. Maintain a documented incident response plan with regular tabletop exercises to ensure team readiness.
