On February 28, in the ChainNode live room, Xu Kun, chief strategy officer of OKEx, revealed that OKEx and last night suffered two DDOS attacks, 200G traffic and 300G traffic respectively. The second attack caused the exchange to go down for 1 minute. In the live broadcast, Xu Kun stated that OKEx was once again attacked by DDOS with 400G traffic. In response to the issue of DDOS, Xu Kun responded to the logic behind: 1. Doing DDOS requires paying an expensive cost, and ordinary individuals do not have the ability to pay this cost; 2. DDOS does not affect the security of user assets, only Has a short-term impact on the user experience.