Just 27 percent of social networkers are protecting themselves against online threats, says AVG.

The security firm's 'Bringing Social Security to the Online community' survey, which was conducted in conjunction with the CMO Council, revealed that 64 percent of Web users who use sites such as Facebook and Twitter admitted to very rarely changing their passwords, while only 43 percent adjust their privacy settings on a frequent basis.

"As social networking populations grow globally and the proliferation of niche social networks and mobile offerings extends the reach of social communities, the threats and vulnerabilities are escalating accordingly," said Donovan Neale-May, executive director of the CMO Council.

AVG said that 21 percent of social networkers accept contact from members they don't recognize, while 26 percent share files within a social network and 64 percent said they click on links sent by other members.

More: http://pcworld.com/article/170910/