Binance $5.9B drain linked to EIP-7702 delegation from Tornado Cash-funded address
On-chain analysts tracing Binance's suspected October 29 hack found that an address funded via Tornado Cash submitted an EIP-7702 delegation for a Binance hot wallet about three minutes before outflows began. The first transaction moved 167,464 ETH and 63 token transfers including 1.615 billion USDT, with losses across Ethereum, Bitcoin and Tron later estimated at $5.57 billion and rising; Chainalysis put the figure at $5.912 billion on October 30. Binance co-founder Changpeng Zhao said it appears to be a hack, but the exchange has not confirmed the EIP-7702 detail, which comes from a single researcher's analysis.