Binance Hack Post Mortem: How $6.3 Billion Disappeared in Minutes

The Binance hack hit on October 29, 2026, when attackers drained about $6.3 billion from Binance hot wallets across several blockchains. According to Binance, the attack started with a compromised DevOps engineer’s laptop, which gave the attacker access to a service container used to submit withdrawals. About $3 billion has been frozen so far, and Binance says it will cover every loss from its SAFU fund and company funds. This post mortem pulls together everything confirmed so far: the timeline, how the attack worked, who is likely behind it and what it means for users.