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Cloudflare Thwarts Record 22.2 Tbps DDoS Attack

9/24/2025

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Summary

Story summary

Cloudflare repelled the largest DDoS attack in history, peaking at 22.2 Tbps and 10.6 Bpps, lasting 40 seconds.
Its autonomous systems detected and neutralized attack in real time, preventing disruption.
The incident follows a 11.5 Tbps attack linked to the AISURU botnet, which controls 300,000 devices.
Users should update router firmware and secure devices to mitigate risks.

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Story summary

Cloudflare repelled the largest DDoS attack in history, peaking at 22.2 Tbps and 10.6 Bpps, lasting 40 seconds.
Its autonomous systems detected and neutralized attack in real time, preventing disruption.
The incident follows a 11.5 Tbps attack linked to the AISURU botnet, which controls 300,000 devices.
Users should update router firmware and secure devices to mitigate risks.