https://arstechnica.com/information-technology/2022/04/one-of-the-most-powerful-ddoses-ever-targets-cryptocurrency-platform/

A cryptocurrency platform was recently on the receiving end of one of the biggest distributed denial-of-service attacks ever after threat actors bombarded it with 15.3 million requests, content delivery network Cloudflare said.

DDoS attacks can be measured in several ways, including by the volume of data, the number of packets, or the number of requests sent each second. The current records are 3.4 terabits per second for volumetric DDoSes—which attempt to consume all bandwidth available to the target—and 809 million packets per second, and 17.2 million requests per second. The latter two records measure the power of application-layer attacks, which attempt to exhaust the computing resources of a target’s infrastructure.