Cross-Chain Security
Bridge and Cross-Chain Security: Why L1/L2 Bridges Get Hacked
Analyzing cross-chain messaging vulnerabilities and validator multi-sig compromise vectors.
LOZULA Protocol Research Lead
2026-07-23
10 min read
Key Takeaways for Security Teams
- Cross-chain bridges require both smart contract and off-chain relayer node security audits.
Cross-chain bridges secure billions in wrapped assets. Learn why multi-sig compromise and proof verification bugs cause massive exploits.
Common Bridge Exploit Vectors
Forged message proofs, relayer private key exfiltration, and deposit event replay attacks represent the most catastrophic bridge failure modes.