The 2H2020 Threat Intelligence Report correctly predicted that 2020s record-breaking distributed denial of service (DDoS) attack activity would follow the COVID-19 pandemic into 2021. If this activity holds, we are on a trajectory that blows right by the unprecedented 10-million attack threshold recorded in 2020. Attacks under five minutes dropped from 24% to 19%, while longer-duration attack numbers did not change appreciably. Attackers seem to be homing in on a duration sweet spot of five to ten minutes, used by 42% of attacks.”]
Source: https://www.csoonline.com/article/3622956/the-beat-goes-on-a-surge-of-ddos-activity-in-2021.html