Softpedia – (International) SQL Injections and DDoS attacks: Most popular topics on hacker forums. Security solutions provider Imperva released the result of its 13th Hacker Intelligence Initiative report, which is based on the analysis of some highly popular hacker forums, including one that is considered to be one of the largest, with 250,000 members. According to experts, the most discussed topics on hacker forums are SQL Injection and distributed denial-of-service (DDoS) attacks, both occupying 19 percent of the discussion volume. It is believed SQL Injection is a favorite attack vector because many of the security solutions deployed by organizations do not even know how to identify such attacks. Another hot topic among hackers is represented by social networks. That is because these Web sites are not only an important source of information, but they also provide the means to make a profit. Facebook is the most discussed (39 percent), followed by Twitter (37 percent), and Myspace (15 percent). Google+ and LinkedIn show up in only 5 percent and 4 percent, respectively, of the social media-related threads.