Global DNS Hit by Largest-Ever DDoS Attack: 1.2Tbps, Multi-Country Outage

Cloudflare discloses largest-ever DDoS attack on global DNS infrastructure at 1.2Tbps peak, causing network outages across Europe and North America for 6+ hours.

Cloudflare today disclosed the largest-ever DDoS attack on global DNS infrastructure this week, with peak traffic reaching 1.2Tbps.

Attack Scale

Peak traffic: 1.2Tbps
Duration: 6 hours
Affected regions: Europe, North America, Asia-Pacific
Method: DNS Water Torture

Impact

Cloudflare customer sites widely inaccessible
AWS Route53 briefly overloaded
Financial transaction systems delayed globally
Streaming services widely disrupted

Response

Cloudflare deployed Anycast load balancing and ML anomaly detection to mitigate the attack. Now cooperating with law enforcement to trace attack sources.

Disclaimer

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