Turn off any sharing/bluetooth stuff you don't intend to use under Sharing.Ģ.Also a no-brainer, avoid public networks if you can, and don't set your device to auto-connect to open ones (as they might by default-I haven't bought a new machine in a while, but they used to do that I believe).Pirated software is rife with malicious stuff even in the Apple Universe. Obviously, dont install software you don't trust and avoid piracy (if you can afford it).New extensions and changed default search engines are really obvious indicator that some unwanted monkey business is taking place on your system. Check your extensions, defualt search engines every once in a while.

You do not actually have to click download and install to get a virus anymore on an Apple product :( Use an updated, modern browser (I would go with Firefox), with plugins like Ghostery/AdBlocker/HTTPSeverywhere, that limit the amount of malicious stuff that could come in through your browser.If you want to really manage connections, try Little Snitch (and buy it if you feel like it it is at least an eye-opener about what's connecting to your computer and what your computer is sending out).Yes you can get malware/viruses (it is increasingly common, much more than Apple wants to admit), and therefore yes you want to protect yourself from that stuff. I'll do my best to deal with your first question, since people mainly discussed the second and third ones you asked-and respectfully those are simple matters of fact, and subordinate logic. And that the chips manufacturers (not only the processor, but almost every chip used inside) didn't include some hardware trojan, keylogger, etc. And that no programmer could make it inside the OS. And that it didn't allow NSA put any backdoor inside it. You just could be sure that the software is free of bugs, keyloggers, virus, etc., if you are able to inspect the source code, and know how to do it, since there are some techniques that can make malicious code less evident.Īnd you would also need to trust that Apple made the Mac without virus, keyloggers, and etc. For example, checking if the MD5 checksum is the same the site published. How to download and install software that isn't infected: in general, you get good software from good sources, and checking that the software you just download wasn't tampered with (man in the middle attack). Yes, it's a good practice to run antivirus software on a Mac. First, it's not true: Macs and any other OS can get viruses.

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