Sophos, a world leader in IT security and control, has revealed the most prevalent malware threats causing problems for computer users around the world during August 2007. The figures, compiled by Sophos’s global network of monitoring stations, show a dramatic drop in malware spreading in the form of email attachments, with just one infected message in every 1,000 emails in August, compared to one in 322 during the first six months of 2007.

Spam, however, has continued to be a problem - much of it linking to malicious websites designed to infect users. A series of large-scale attacks have been made via spam email, directing users to infected webpages with the promise of ecards, pictures of nude celebrities, YouTube movies and pop music videos. CNW Group