Chainalysis believes that $2B worth of crypto has been siphoned out of cross-chain bridges this year alone, which includes recent $190M Nomad bridge exploit. This type of hack accounts for 69% of all stolen crypto funds this year. The most notable of the 13 cross-chain attacks in 2022 was the Ronin Bridge exploit, which saw the protocol lose $625M in $ETH and $USDC after being targeted by North Korean hacking group Lazarus.