Cloudflare has sent us a copy of its quarterly DDoS threat report, and it makes for hair-raising reading. The gigantic CDN provider claims that it recorded "an unprecedented bombardment" from a botnet in the fourth quarter of 2025, resulting in a DDoS attack that peaked at 31.4 Terabits a second.
Cloudflare claims that this is "the largest attack ever disclosed publicly", and "a new world record". The attack is said to have been launched by the Aisuru/Kimwolf botnet against Cloudflare customers and its infrastructure, with the campaign itself dubbed "The Night Before Christmas".
