Mitigating a 754 Million PPS DDoS Attack Automatically

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On June 21, Cloudflare automatically mitigated a highly volumetric DDoS attack that peaked at 754 million packets per second.

The attack was part of an organized four day campaign starting on June 18 and ending on June 21: attack traffic was sent from over 316,000 IP addresses towards a single Cloudflare IP address that was mostly used for websites on our Free plan. No downtime or service degradation was reported during the attack, and no charges accrued to customers due to our unmetered mitigation guarantee.

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