The myth that Macs are immune to viruses was put to rest once and for all by Flashback, a malware program that infected hundreds of thousands of Macs. As a result of that attack, Apple was forced to respond with a removal tool. Don't wait for the next big Mac breach--there are five simple things you can do now to keep your Mac safe from infection. Here they are.
Lock down your Mac: Step 3
Yet another security option is to block all incoming connections. As you can see above, I've chosen to allow Dropbox to connect to my Mac so I can keep my files synced.
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