Fifty Shades of Nonce -- A Consensual Delegation Study of the 2026 Binance Incident

Abstract. on oct 30, about $3B left @binance's biggest ethereum hot wallet. binance says no private key leaked. so how did the money move? I spent the day tracing it on-chain, one dumb question at a

Abstract. on oct 30, about $3B left @binance's biggest ethereum hot wallet. binance says no private key leaked. so how did the money move? I spent the day tracing it on-chain, one dumb question at a time. short version: nobody stole the key. the attacker got the system around the key to sign 50 small messages, and one of them handed over the wallet. the key was safe. what told the key what to sign was not. Keywords: EIP-7702, nonces, delegation, laptops 1. Introduction (what happened?) around 1: