Cloudflare Mitigates Record-Breaking 29.7 Tbps DDoS Attack

Thursday, Dec 4, 2025 9:32 am ET1min read

Cloudflare has mitigated a 29.7 Tbps DDoS attack, the largest ever recorded, which originated from the AISURU botnet. The attack lasted for 69 seconds and targeted an unspecified entity. AISURU has launched 1,304 hyper-volumetric attacks in Q3 2025, and Cloudflare has blocked 8.3 million DDoS attacks this year, a 40% increase from last year.

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