Regularly check for viruses on your hard disk using an anti-virus program, especially if you download files from the Internet or share files with others.

Check periodically for any updates to the anti-virus programs you use to ensure that the programs are scanning for the latest known viruses. Although virus infections are rare, they do exist and can cause problems with (and sometimes damage) your files or application programs.

Software reviews

Reviews of popular Macintosh anti-virus software products can be found on the Web at the Macworld and MacAddict Web sites, for example.

For more information

You can find more information about viruses in AppleCare Knowledge Base at kbase.info.apple.com

Related topic

Preventative maintenance