Distributed denial-of-service (DDoS) attacks are on the rise, according to a report released by Trustwave this week. The company s semi-annual Web Hacking Incident Database (WHID) report found the attacks jumped 22 percent from the first half of 2010. DDoS attacks occupied 32% of attacks while SQL injection and XSS attacks took up 21% and 9% respectively. The attacks are commonly used to knock Web servers and other high profile assets offline.
Source: https://threatpost.com/report-ddos-attacks-rise-2011-031511/75030/