Largest DDoS Attack to Date

It was a recently unimaginable 7.3 Tbps: The vast majority of the attack was delivered in the form of User Datagram Protocol packets. Legitimate UDP-based transmissions are used in especially time-sensitive communications, such as those for video playback, gaming applications, and DNS lookups. It...

Massive 7.3 Tbps DDoS Attack Delivers 37.4 TB in 45 Seconds, Targeting Hosting Provider

Cloudflare on Thursday said it autonomously blocked the largest distributed denial-of-service DDoS attack ever recorded, which hit a peak of 7.3 terabits per second Tbps. The attack, which was detected in mid-May 2025, targeted an unnamed hosting provider. "Hosting providers and critical Internet...