Google has recently revealed a nation-state DDoS campaign against it originating from China, which may have been the most dangerous attack of its kind ever recorded.
The 2.5Tbps DDoS struck in September 2017 but went public for the first time this Friday in a report designed to share cyber-defense best practices and plug Google Cloud mitigations.
According to Damian Menscher, Google security reliability engineer, the attack leads a six-month campaign against the firm.
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Despite simultaneously targeting thousands of IPs, presumably to slip past automated defenses, the attack had no significant impact. The attacker used several networks to spoof 167 Mpps to 180,000 exposed DNS, CLDAP, and SMTP servers, which would then share large responses.