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2. FileVault - Wikipedia

   en.wikipedia.org/wiki/FileVault

   When FileVault 2 is enabled while the system is running, the system creates and displays a recovery key for the computer, and optionally offers the user to store the key with Apple. The 120 bit recovery key is encoded with all letters and numbers 1 through 9, and read from /dev/random , and therefore relies on the security of the PRNG used in ...

3. Target Disk Mode - Wikipedia

   en.wikipedia.org/wiki/Target_Disk_Mode

   Target Disk Mode (sometimes referred to as TDM or Target Mode) is a boot mode unique to Macintosh computers. When a Mac that supports Target Disk Mode [1] is started with the 'T' key held down, its operating system does not boot. Instead, the Mac's firmware enables its drives to behave as a SCSI, FireWire, Thunderbolt, or USB-C external mass ...

4. Disk Drill - Wikipedia

   en.wikipedia.org/wiki/Disk_Drill

   The core of Disk Drill is a Recovery Vault technology which allows to recover data from a medium that was secured by Recovery Vault beforehand. [5] [6] Recovery Vault runs as a background service and remembers all metadata and properties of the deleted data, making it possible to restore deleted files with their original file names and location.

5. Data recovery - Wikipedia

   en.wikipedia.org/wiki/Data_recovery

   The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive.

6. Undeletion - Wikipedia

   en.wikipedia.org/wiki/Undeletion

   The workings of undeletion depend on the file system on which the deleted file was stored. Some file systems, such as HFS, cannot provide an undeletion feature because no information about the deleted file is retained (except by additional software, which is not usually present). Some file systems, however, do not erase all traces of a deleted ...

7. Data remanence - Wikipedia

   en.wikipedia.org/wiki/Data_remanence

   Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that does not remove data previously written to the media, or through physical properties of the storage media that allow previously ...