Cloudflare successfully blocked the largest DDoS attack ever recorded, reaching 11.5 Tbps, which lasted approximately 35 seconds. The attack was a UDP flood primarily originating from Google Cloud infrastructure, highlighting the ongoing threat of hyper-volumetric cyberattacks. #Cloudflare #DDoS #GoogleCloud #UDPflood
Keypoints
- The record-breaking DDoS attack peaked at 11.5 Tbps and 5.1 Bpps.
- The attack was a UDP flood mainly sourced from Google Cloud infrastructure.
- Cloudflare has blocked hundreds of hyper-volumetric DDoS attacks recently, including previous high peaks.
- Historically, the largest DDoS attack was 37.4 Tb, involving over 122,000 IPs, and lasted 45 seconds.
- In the first half of 2025, Cloudflare mitigated 27.8 million DDoS attacks, surpassing 2024’s totals.
Read More: https://www.securityweek.com/cloudflare-blocks-record-11-5-tbps-ddos-attack/