The perfect theft in crypto is claiming that a project or an exchange is hacked when its all an inside job, the reason why I think about this is I have never heard about other top exchanges helping a exchange that just got hacked to track their funds and get some back at least but if it's a sole hacker from outside they will track him or them down, why is that?.
Maybe got a point. Its kinda hard to track a centralized exchange on chain, which was hacked. Even the said exchange hacked, there is no showcase of it that can ve seen onchain. There arr plenty of movement in and out of big markets and seeing this will give us only minor views that can ve verified that the hack is that.
Its more seen on decentralized but when we talk avout cex hacked it could be an inside job as well.