Cloudflare reported in its 2025 Q4 DDoS threat report that it automatically mitigated a 31.4 Tbps attack lasting about 35 seconds, launched by the Aisuru-Kimwolf botnet of an estimated 1-4 million infected devices, mostly Android TVs. Record sizes grew more than 700% during 2025, so this figure is likely to be surpassed.
The question, scope, and sources behind this Registry record.
Cloudflare reported in its 2025 Q4 DDoS threat report that it automatically mitigated a 31.4 Tbps attack lasting about 35 seconds, launched by the Aisuru-Kimwolf botnet of an estimated 1-4 million infected devices, mostly Android TVs. Record sizes grew more than 700% during 2025, so this figure is likely to be surpassed.
The highest peak traffic rate of a distributed denial-of-service attack publicly disclosed by a mitigation provider.
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Current frontiers derived from accepted Claims.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-LARGEST-DDOS-ATTACK-MITIGATED
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Limits Registry. LR-LARGEST-DDOS-ATTACK-MITIGATED. Largest publicly disclosed DDoS attack. 2026.