The biggest recorded distributed denial-of-service (DDoS) attack in history was recorded on Friday. Cloudflare says it stopped a 45-second-long DDoS attack that peaked at 7.3 terabits per second, translating to a total of roughly 37.4 terabytes of data.
https://www.pcmag.com/news/cloudflare-world-record-73tbps-ddos-attack-hits-mystery-target