From February to September 2020, the number of DDoS attacks nearly doubled and was on average 98% higher than in the same period last year. 59% of incidents used so-called multi-vector attacks, which are harder to prevent and defend against. Longest DDoS attack was 5,698 minutes equating to four full days of continuous bombardment. DDoS extortionists posing as Fancy Bear, Cozy Bear, Armada Collective, and Lazarus Group mainly targeted operators of critical infrastructure and providers of financial services, eCommerce, and hosting services.
Source: https://www.helpnetsecurity.com/2021/03/18/ddos-attacks-pandemic/