Cloudflare on Thursday said it autonomously blocked the largest ever 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 infrastructure have increasingly become targets of DDoS attacks,” Cloudflare’s Omer
Massive 7.3 Tbps DDoS Attack Delivers 37.4 TB in 45 Seconds, Targeting Hosting Provider
