Keychains – Encrypted (168-bit 3DES) archives for login credentials, security certificates, and additional secure/sensitive resources (both local and network-based as well as user and system based).You can erase an entire drive, partition, or just all empty space (essentially a more secure version of Secure Empty Trash that affects al previously deleted data). Secure Erase – Available in Disk Utility, this option allows you to zero out data on a hard drive when erasing or to do a 7-pass (DOD security requirement) or 35-pass erase. Located in the Finder menu just below the standard Empty Trash option. Secure Empty Trash – Overwrites all disk space containing deleted files when the Trash is empty rather than simply marking the sectors of the disk as free. Optionally all data in the swap file can be encrypted so data can't be retrieved if the device is compromised (again use the Security to enable). If used with Apple's Time Machine, all backups are also encrypted.Įncrypted Virtual Memory – Like other Unix OSes, Mac OS X uses a virtual memory swap file.
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Encrypted disk images – You can created disk images (files that act like an external drive when opened) that are password protected and encrypted with either 128-bit or 256-bit encryption using Disk Utility or the command line hdutil tool.įileVault – An automatic feature enabled in System Preferences (the Security pane) that creates 128-bit encrypted disk image that is used to store your home folder (all settings and documents).
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