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The page states that at Binance's estimate, the theft was $6.3B, making it the largest on record and more than four times the $1.5B taken from Bybit in February 2025.
This line is our short summary of the quote below. The quote is the evidence.
ReportedamountClaim 88
Attacks on signing infrastructure, where an attacker makes an organization’s own keys sign for them, remain the largest source of losses onchain, and at Binance’s estimate of $6.3B this is the largest theft on record, more than four times the roughly $1.5B taken from Bybit in February 2025.
Reviewer note: Event time is a date only. The 00:00 UTC time shown is a placeholder, the source gives no time of day. Blockaid relays Binance's estimate; the 'largest theft on record' wording is Blockaid's.
Blockaid Cosigner is an independent signing layer that sits on a wallet and utilizes signals from our exploit detection engine to reject malicious transactions.
Blockaid's transaction security engine classified the type-4 transaction that delegated Binance 14 as malicious on sight, with the reason that an EOA was being upgraded through EIP-7702 to an untrusted address.