Although folks are currently fixated on the Flashback botnet, Sophos draws attention to the fact that one in five Macs harbors some kind of Windows-oriented malware. The company gathered results over seven days from 100,000 Apple machines using its free antivirus program...

Sophos researchers have tested 50 USB drives and found that two-thirds (33) were infected. The drives were purchased at a train company's lost property auction, so they were presumably owned by passengers before being misplaced. During testing...