New DDoS Report from Link11


  • DDoS Report from Link11: Year-on-year comparison 2020/21: Increase of DDoS attacks in the international Link11 network by 41 percent.
  • Highest attack reached around 4.5 Tbps.
  • Average attack bandwidth peak nearly tripled – from 161 Gbps to 437 Gbps.
  • Marc Wilczek (Managing Director, Link11):

Frankfurt am Main, 2022 March 9. Over the last few years, a constant increase in distributed denial of service attacks has been recorded – primarily forced by waves of blackmailers. Geopolitical tensions are now being added to the already high level of previous years. Against the backdrop of the events in the Ukraine conflict, it is to be expected that cyberattacks will also continue to increase as a means of asymmetric warfare. The main focus here is on DDoS attacks, which cause complex IT infrastructures to fail, for example at public authorities or financial institutions, with the aim of sabotaging and unsettling them. The number of DDoS attacks measured in the Link11 network has already increased noticeably in the past year. As Europe’s leading IT security provider for cyber resilience, Link11 is today publishing new data on this in its in-house DDoS Report 2021.

According to the report, the number of DDoS attacks increased by 41 percent between 2020 and 2021. Compared to an already high level driven by cybercriminals looking to capitalize on the digitalization wave at the start of the pandemic, the volume of attacks has increased further.

Attack bandwidths have also followed the same trend and have consistently increased. The highest bandwidth measured on the Link11 network was over 1 Tbps, adding up to over 4.5 Tbps of volume in just under two hours. Numerous other high-volume attacks occurred, especially in the second half of 2021. According to the report, the average attack bandwidth peak in 2021 was 437 Gbps, up from 161 Gbps in 2020. In contrast, the average total bandwidth fell from 1.5 to 1.4 Gbps due to the increase in so-called “carpet bombing”. Among other things, the new and massive botnet Meris was responsible for the increase in high-volume attacks. It can cause lasting disruption to even very robust networks by sending a large number of requests per second (RPS).

In addition, 71…

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