Ronin Bridge lost about $624 million after an attacker compromised Sky Mavis validators and abused unreclaimed Axie DAO whitelist access to obtain the fifth signature needed for withdrawals. The attacker authorized two withdrawals, draining 173,600 ETH and 25.5 million USDC, then swapped the USDC for ETH and moved 6,250 ETH onward, including transfers to FTX and Crypto.com. The excerpt says the attacker address was initially funded from Binance and identifies the main wallet as 0x098b716b8aaf21512996dc57eb0615e2383e2f96. It also notes, in related-site text, that the FBI later announced North Korean state-sponsored hackers known as Lazarus Group were responsible for multiple DeFi hacks, including Ronin.