DDoS attacks fell last year but remain above pre-pandemic levels

The number of DDoS attacks dropped 13 percent in 2021 compared to 2020, but remained well above pre-pandemic levels. Research from Nexusguard also shows that while the average attack size fell by 50 percent over 2021, the maximum attack size nearly tripled, growing by a whopping 297 percent over the same period. The top three DDoS attack vectors in 2021 were UDP (user datagram protocol) attacks, DNS amplification attacks, and TCP acknowledgment attacks. UDP remained the most common although it accounted for a smaller percentage of attacks, falling from 59.9 percent in 2020 to 39.1 percent in 2021. DNS amplification… [Continue Reading]