Recently there has been a rise in the reports of Mac based malware seen by users.
This threat is called ‘Mac defender’ and usually shows up as a drive by download advising you that you have multiple infections just the PC versions out there.
It attempts to mimic your finder window and display a list of infections, which are all bogus-
One of my clients sent me this image of a Safari page that popped up while searching for images on Google.
Apple have released a statement-
Sophos anti-virus have released a free home version to keep you protected-