This Binance security incident made me think about a rather frightening issue. The person with the highest privileges is often the weakest link in the defenses! If this attack truly started with an engineer's computer, it's something that deserves serious reflection. Such a large exchange, having invested so much in security, could have its entire system exposed to enormous risk simply because of a problem with one person's computer. I've noticed this phenomenon in many companies: the more core the personnel and the higher their privileges, the more likely they are to be assumed to be secure. But today's hackers are incredibly clever! They don't necessarily need to breach the entire system; they only need to find the person with the highest privileges who is most vulnerable. Therefore, the most dangerous thing isn't someone making a mistake, but rather that one person's error can cost the entire company dearly. This incident also serves as a reminder to all entrepreneurs: don't just focus on how to defend against outsiders; also consider your own company—is there anyone whose mistake could cause the entire company to suffer?