Cloudflare, a web infrastructure and security company, has just released a report titled “DDoS Attack Trends for Q4 2021.” According to Cloudflare, 2021 has been a particularly bad year in terms of DDoS attacks.
Ransom distributed denial of service (DDoS) attacks increased by over 175 percent quarter over quarter, highlighting the large scale of the problem described by Cloudflare.
Image source: Cloudflare
In its quarterly report, Cloudflare details the attacks that took place over the last part of 2021 and provides a summary of what happened during the first half of the year. It seems that 2021 was a bad year all around when it comes to DDoS campaigns.
The first half of the year saw massive ransomware attacks that affected parts of critical infrastructure all around the world, as well as a vulnerability in IT management software. This vulnerability targeted the public sector, credit unions, schools, and other essential services.
Things didn’t improve as the year went on. Cloudflare saw the rise of a new botnet called Meris during the second half of 2021. It appeared in mid-2021 and bombarded organizations all around the world with some of the biggest HTTP attacks ever recorded. This includes a 17.2 million requests-per-second (rps) attack that Cloudflare automatically intercepted.
The two last quarters of 2021 saw also the appearance of one of the most severe vulnerabilities ever recorded on the internet. The Log4j2 vulnerability was discovered in December and proved to be very dangerous — it allows an attacker to execute code on a remote server without requiring physical access.
In the latter portion of the report, Cloudflare talks about the rising trend of DDoS attacks that are demonstrative of how much cyber insecuri ..
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