Windows viruses and other malware, which can come in via e-mail, the Web, or USB drive, either being passed on to Windows-using friends or colleagues, or infecting virtual installations of Windows installed on a Mac.Popular Twitter accounts, such as that belonging to former Apple evangelist Guy Kawasaki, who have tweeted out links to websites designed to infect Mac computers.
Sophos says past threats to Mac users have included: Windows threats are in the millions while the number of strains of Mac malware is in the thousands. Interestingly, the company has no plans to release an equivalent free version for Windows. The Internet security firm took its existing enterprise antivirus software and slimmed it down to reduce complexity. Although commercial antivirus products for Macs have been available for some time, Sophos' offer is one of the very few free ones. Sophos has released a free antivirus product for consumers using Mac OS: Sophos Anti-Virus Home Edition for Mac.
