To be honest, this was not a simple employee error, but a sophisticated persistent attack (APT) targeting the exchange's core wallet system, prepared for months. This exposes two crucial questions for Binance, and areas that deserve serious reflection: 1️⃣ Why could the compromise of a normal working environment ultimately affect the core signature service? 2️⃣ Why were funds still being transferred out after the attack was detected and withdrawals were suspended?