Security News > 2022 > May > DDoS attacks decreased in 2021, still above pre-pandemic levels

DDoS attacks decreased in 2021, still above pre-pandemic levels.

As part of NexusGuard's "DDoS Statistical Report for 2021", it was found that despite the rate of DDoS attacks falling from 2020 to 2021, the number of attacks still outweigh those experienced before the COVID-19 pandemic began, as the total number of DDoS attacks were reduced by 13.3% from 2020 to 2021, according to the DDoS protection company.

"While the number and average size of DDoS attacks fell in 2021 over 2020, the threat level is still very high when compared to pre-pandemic levels," said Juniman Kasman, chief technology officer of Nexusguard.

"Attack vectors are also in flux, because while UDP attacks are still the most common, TCP ACK, which can exponentially amplify the effect of a DDoS event with a small amount of traffic, rose significantly. Organizations need to be prepared to deal with a wide array of vectors - DDoS remains a persistent, elevated threat."

Another trend found was that attacks during the months of June, July and August typically signaled the end of DDoS attack "Season", as the number of attacks started to dwindle starting in September and through the remainder of the year before spiking again the following March.

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https://www.techrepublic.com/article/ddos-attacks-decreased-in-2021-still-above-pre-pandemic-levels/