Binance suffered a $6.3 billion theft, and the biggest insider wasn't the hacker, but the abysmal security awareness of its technical staff. The world's largest exchange, managing hundreds of billions of dollars in assets, had internal defenses that were practically a sieve. A close look at the details in the report is chilling: First, a fatal work habit: using the work computer to take on freelance interviews. Software engineer B took interviews on a job recruitment platform, not only using the work computer provided by Binance, but also downloading a compressed file of "test questions" from an unknown source. For low-level developers with core privileges, work devices must be physically isolated. Instead, he double-clicked and ran whatever the hacker sent. Outrageous!! This software engineer B should be fired immediately. He's utterly trash, using the same computer for job hunting while simultaneously harming Binance! Second, ineffective antivirus software. The malicious code package sent by the hacker bypassed Binance's Endpoint Protection (EDR) without even triggering an alert. The hacker even implanted a script to "erase traces," rendering Binance's monitoring system completely ineffective. Third, disastrous internal access control. The hacker, having gained control of B's computer, used an internal AI tool as a springboard to laterally gain control of the computers of two other core wallet engineers! The internal network had absolutely no "zero trust" policy; a breach at one point led to a complete collapse. Fourth, a cumbersome response mechanism. After obtaining on-chain authorization via EIP-7702, Binance, using MPC multi-signature, lacked a single private key to sever the authorization with a single click. Watching their on-chain assets being drained bit by bit, the team had to hastily write code to revoke the authorization, dragging things out for several hours. The hacker was indeed cunning, having prepared for four months. But the collapse of Binance's defenses wasn't due to the hacker using any alien technology; rather, it was because the most basic security red lines were completely breached. No matter how sophisticated the cryptography or how perfect the decentralized code, it cannot fill the gaps in human negligence and management loopholes. Is Binance prioritizing the removal of problematic personnel from its internal staff, followed by a complete rebuild of its security system, and making the isolation of core technical personnel its top priority?