Cloudflare Stops New World's Largest DDoS Attack Over Labor Day Weekend
Cloudflare, Tuesday, September 2nd, 2025
This record-smashing DDoS attack was almost 60% larger than the previous largest attack.
ZDNET's key takeaways
- The biggest, baddest DDoS attack to date was just fended off.
- The attack used the trivial, but nasty, UDP flood attack.
- You must protect yourself against DDoS attacks.
Over the Labor Day weekend, Cloudflare says it successfully stopped a record-breaking distributed denial-of-service (DDoS) attack that peaked at 11.5 terabits per second (Tbps). This came only a few months after Cloudflare blocked a then all-time high DDoS attack of 7.3 Tbps. This latest attack was almost 60% larger.