4 entries tagged “bridge-hack”.
The Nomad token bridge was drained of about $190M in August 2022 in a chaotic 'free-for-all' after a flawed upgrade let users replay other people's withdrawal messages by copying transactions.
Harmony's Horizon bridge was exploited for about $100M in June 2022 after attackers compromised multisig signing keys. The FBI later attributed the theft, along with the Ronin hack, to North Korea's Lazarus Group.
The Wormhole bridge between Solana and Ethereum was exploited for about $325M (120,000 wETH) in February 2022 after a signature-verification flaw let the attacker mint unbacked tokens. Backer Jump Crypto replenished the funds.
The Ronin bridge behind the game Axie Infinity was drained of about $625M in ETH and USDC in March 2022 after attackers obtained validator keys. U.S. authorities attributed the theft to North Korea's Lazarus Group, and OFAC sanctioned the wallet.
