Mac Help: Malware protection for older Macs

[iMore.com]

Some anti-malware software only supports newer versions of OS X. If you're running an older Mac, use this instead.
Some folks aren't comfortable upgrading their Macs' operating systems, and continue to use versions that aren't well-supported by new software. Fortunately there's still a solution for Macs running OS X Snow Leopard.

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