NoOnes' Solana cross-chain bridge was exploited via a vulnerability in the relay contract's message processing logic. The attacker crafted malicious bridge messages that bypassed validation, tricking the relayer into authorizing unauthorized withdrawals across multiple blockchains through hundreds of small transactions each under $7,000.

The peer-to-peer cryptocurrency trading platform NoOnes suffered a major security breach earlier this month. CEO Ray Youssef explained that the breach occurred on January 1st due to an exploit involving their Solana bridge.