On February 22, Slow Fog founder Cosine posted on social media that from a security perspective, the suggestion of urgently stopping the wallet system is correct when the reasons are unknown. Bybit's stolen response speed this time is extremely fast, and the location problem is also extremely fast. Slow fog and some security teams intervened in the communication as soon as possible, quickly identified the problem and speculated the hacker's portrait. Bybit is ready and then activate and withdraw the currency in time. Cosine explained that he believes that CZ's previous suggestions and Bybit's final solution are fine. At present, many industry insiders are consuming this controversy, but forget that the common enemy should be a North Korean hacker.