DDoS defense firm CloudFlare disclosed the attack — against one of its customers — Monday. Monday’s attack caused trouble “even off our network,” suggesting some upstream service providers may have experienced slowdowns. DDoS attack peaked at 400 Gbit/s, which is about 100 Gbit more than the largest previously seen DDoS attacks. Cloudflare CEO Matthew Prince tweeted that Monday’s DDoS appeared to be bigger than the March 2013 attack against Spamhaus, which peaked at a record-breaking 300 Gbit/.”]
Source: https://www.darkreading.com/attacks-breaches/ddos-attack-hits-400-gbit-s-breaks-record