Think you don't need an antivirus scanner for your Mac? Get your head out of the sand and get protected! While malware is much rarer on OS X than it is on Windows, the increased popularity of the platform means that hackers have turned their attention to this new ecosystem
And protecting your Mac won't cost the earth either, with four out of the five antivirus scanners listed here being totally free.
A comprehensive scanner that not only catches OS X malware, but also stops you spreading any Windows nasties you might have picked up to others.
Once installed, it will work quietly in the background with your choice of scanning on-access, on-demand or on a schedule.
Works on Macs running OS X 10.6 Snow Leopard to the latest OS X 10.10 Yosemite.
More information: Sophos
A simple-to-use yet powerful antivirus scanner that is always on, runs in the background, and protects you against threats both old and new.
More information: AVG
A lightweight yet powerful antivirus scanner that not only scans your file system for malware, but also keeps your email and web browsing secure.
More information: Avast
A free and open source antivirus scanner for Mac that protects against both OS X and Windows malware.
More information: ClamXav
The only commercial product on this list, but worthy of a mention because it offers premium features that the free software doesn't, such as a firewall and parental controls.
Prices start from $39.99
More information: Intego