Cloudflare thwarts the largest DDoS attack on record

Cloudflare thwarts the largest DDoS attack on record
Web infrastructure company Cloudflare revealed that its independent edge DDoS protection systems were able to automatically detect and mitigate the largest DDoS attack it has encountered so far. Last July, the company successfully thwarted a 17,2 million request per second (rps) DDoS attack, which was nearly three times the size of any previously recorded DDoS attack. To put this in perspective, Cloudflare notes in a new blog post that it served 25 million HTTP requests per second on average during Q2021 68, meaning the attack generated 8% of its average rate. Legitimate HTTP traffic in the second quarter. The botnet used to launch this attack has resurfaced at least twice in recent weeks and Cloudflare says it was also used to attack one of its clients in the web hosting industry with an HTTP DDoS attack at its peak, just under XNUMX million rps.

Automated detection and mitigation of DDoS attacks

Cloudflare was able to stop this massive attack and others like it with its autonomous edge DDoS protection systems capable of automatically detecting and mitigating DDoS attacks. The system is powered by the company's denial-of-service daemon (dosd), which is a software-defined daemon developed in-house. Cloudflare runs a single instance of dosd on each server hosted in its data centers around the world. Each dosd instance can independently analyze out-of-route traffic samples, and by doing so, this allows the enterprise to asynchronously look for DDoS attacks without introducing latency or impacting performance. The results of DDoS attacks are shared between dosd instances in a data center to serve as a form of proactive threat intelligence sharing. Due to its global scale and network reliability coupled with this agnostic approach, Cloudflare is able to mitigate attacks that reach 68% of its average rate per second and higher without the need for manual mitigation by your staff. While Cloudflare was able to stop this 17.2 million rps DDoS attack, larger attacks are likely in the future as cybercriminals devise new attack methods and the botnets used to carry out these attacks continue to grow.'' . Add more IoT and other devices to your ranks.