The servers of British cryptocurrency exchange EXMO were taken offline temporarily after being targeted in a distributed denial-of-service (DDoS) attack. EXMO suspended all withdrawals following the incident and added that all user losses following this incident will be covered and refunded completely by EXMO. The exchange’s servers and website are now back online after the DDoS attack was announced earlier today. ExMO disclosed in December 2020 that unknown attackers were able to withdraw roughly 5% of its total assets after compromising EXMO’s hot wallets.
Source: https://www.bleepingcomputer.com/news/security/ddos-attack-takes-down-exmo-cryptocurrency-exchange-servers/