EliSowash writes: "Mcafee reports that mobile malware hit more than 400 unique samples in Q4 2011, nearly quadrupuling the previous quarter, and total unique malware samples topped 75 million. According to Adam Wosotowsky , senior anti-spam analyst and author of the report, malware authors are changing their tactics. "They are moving to a persistent model, where they are trying to get into corporations and steal intellectual property, more money, and to maintain the infection for a long period of time." Cybercrime and hacktivism were also notable in the last quarter of 2011, particularly the activities of Anonymous, LulzSec, and Sabu. The full report is available here (PDF)."