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Chapter 13. Security Basics > Filesystem Security

13.3. Filesystem Security

Even with protections in place preventing unauthorized account access, your Mac is still prone to intrusion as long as there's no filesystem protection in place.

13.3.1. FileVault

Your entire filesystem can become accessible to anyone able to mount it as an external drive on a second system. This can occur, for example, if your Mac is put into target disk mode and mounted, or more drastically, if your hard drive is removed and placed in another machine. One way to keep at least your home directory safe from intrusion, even in these cases, is to use FileVault, as discussed in Chapter 4.


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