Multisig hot wallet keys compromised; 120k BTC stolen.
Attacker wallets funded and staged ahead of the private key compromise exploit against Bitfinex.
$72.0M drained from Bitfinex on Bitcoin via Private Key Compromise.
SlowMist flagged the anomalous transactions and published an initial alert.
Bitfinex paused affected contracts or withdrawals and began tracing outbound flows.
Stolen assets followed through mixers, bridges, and exchange deposit addresses.
$18.0M of $72.0M recovered (25%); the remainder is still unaccounted for.
Remaining funds monitored across chains with exchange partners notified.