A recent security report has highlighted a significant rise in the number of malware and malvertising attacks on social networks. After three months of browsing on social networks it is claimed that a user has a 95% chance of landing on an infected page. Dasient recorded that more than one million websites were infected with malware in Q4, 2010.
Malicious advertising (otherwise known as malvertising) on search engines and websites has more than doubled from 1.5 million to 3 million from Q3 to Q4 2010. Ad networks are major culprits for delivering this malicious payload. Social networks though will continue to be targeted by malvertising ads as hackers look to test drive their techniques to push users to infected web pages.
Source: ID Theft Protect