Cloudflare Mitigates Largest Ever Recorded DDoS Attack at 11.5 Tbps

Cloudflare mitigated the largest DDoS attack ever recorded, an 11.5 Tbps flood that lasted 35 seconds without disrupting online services.

Cloudflare has successfully mitigated the largest DDoS attack (or distributed denial-of-service attack) recorded to date. The attack peaked at 11.5 terabits per second and lasted roughly 35 seconds before being neutralised without disrupting services.

According to Cloudflare, the attack took the form of a massive UDP flood. While early analysis pointed to Google Cloud as a major source of the traffic, further investigation showed that it was generated by a mix of compromised Internet of Things (IoT) devices and multiple cloud providers.

An attack of this scale is designed to overwhelm the internet infrastructure with a flood of requests, effectively knocking services offline if they are not protected. To put the size into perspective, the bandwidth was equivalent to streaming thousands of ...