A DDoS attack is a flood of internet traffic from many different machines. It targets a single device, service, or network with the intent of overwhelming a specific target so that it can’t be used.

Internet security firm 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. To put this in ...

According to Cloudflare, this record-setting attack comes amid a dramatic surge in DDoS assaults. In the first quarter of 2025 alone, Cloudflare mitigated 20.5 million DDoS attacks.