Social Networking Threats to Security

Facebook was found to be the greatest threat to security in a recent survey of 2000 computer users by Sophos. Of the 2000, 71% had been spammed, 46% had been phished and 45% had received malware. The numbers are not surprising. If anything they seem low. I've been phished and spammed daily and have received malware within the past few months. Here's a summary.