IT disaster recovery, cloud computing and information security news

Q1 2021 sees another large jump in DDoS attacks

Link11 has released its DDoS report for Q1 2021, which revealed that the number of DDoS attacks recorded was more than double the number of attacks seen in the same period in the previous year.

The key findings from the report are:

  • The number of attacks continued to increase: there was an 128 percent increase in the number of attacks in Q1 2021 compared to Q1 2020.
  • Attack bandwidths remained high: 216 Gbps maximum in attack volume.
  • Increasing use of carpet bombing attacks: attackers are more and more switching to ‘carpet bombing’ attacks with small-volume, low-threshold attacks, which remain under the radar of many protection solutions. The hundreds or thousands of small attacks running in parallel can easily add up to a high-volume attack of several tens or hundreds of Gbps and cause an infrastructure to collapse. This is particularly worrisome for hosting and cloud providers.
  • Highly dynamic attack tactics: 69 percent of attacks were multi-vector attacks combining multiple techniques.
  • DDoS attackers stick to their target even if they are unsuccessful: 1,489 minutes was the longest attack (>24 h). Without effective protection, long recovery times, which can be twice or three times as long as the actual attack, would still have to be considered.

In Q1 2021, attackers increasingly targeted companies that were either in high demand due to the pandemic or had to shift their operations online. These included the healthcare sector, public administrations, educational institutions, logistics companies, online retail, media, and entertainment companies. However, data centre / center operators, who play a significant role in the digitisation of companies, were also under heavy fire. Almost every second DDoS attack (47 percent) targeted hosting providers and ISPs.

More details.



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