A bridge exploit check screens a wallet for exposure to funds stolen in cross-chain bridge attacks like Ronin or Wormhole; Plastron flags bridge-exploit exposure free across seven EVM chains.

Cross-chain bridge protocols have been the largest single category of DeFi hack targets, collectively accounting for over $2.5 billion in stolen assets between 2021 and 2023. The Ronin Bridge hack in March 2022, attributed to North Korea's Lazarus Group, alone stole $625 million in ETH and USDC. The Wormhole bridge lost $320 million in February 2022, and the Nomad bridge was exploited for $190 million in August 2022. Bridge exploits are particularly problematic for compliance because they involve cross-chain fund movements that are harder to trace than single-chain transactions. Funds stolen from a bridge on one chain are frequently transferred to a different chain before being further distributed, creating multi-chain exposure paths that span Ethereum, BSC, Solana, and other networks. For users who bridge assets regularly — moving between Ethereum, Layer 2 networks, and other chains — the compliance risk is significant. Bridge transactions involve smart contract interactions that can place your wallet in proximity to exploit-linked addresses, particularly if you used a bridge before or shortly after an exploit. The addresses used by bridge hackers to receive and distribute stolen funds are tracked by blockchain analytics firms and appear in threat intelligence databases. Any of your counterparties that interacted with these addresses carries bridge exploit exposure.