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2. Data erasure - Wikipedia

   en.wikipedia.org/wiki/Data_erasure

   Data erasure (sometimes referred to as data clearing, data wiping, or data destruction) is a software-based method of data sanitization that aims to completely destroy all electronic data residing on a hard disk drive or other digital media by overwriting data onto all sectors of the device in an irreversible process. By overwriting the data on ...

3. Trim (computing) - Wikipedia

   en.wikipedia.org/wiki/Trim_(computing)

   Since an erase of the cells in the page is needed before it can be written to again, but only entire blocks can be erased, an overwrite will initiate a read-erase-modify-write cycle: [7] [12] the contents of the entire block are stored in cache, then the entire block is erased from the SSD, then the overwritten page(s) is written into the ...

4. Darik's Boot and Nuke - Wikipedia

   en.wikipedia.org/wiki/Darik's_Boot_and_Nuke

   The Gutmann method, Quick Erase, DoD Short (3 passes), and DOD 5220.22-M (7 passes) are also included as options to handle data remanence. DBAN can be booted from a CD, DVD, USB flash drive or diskless using a Preboot Execution Environment. It is based on Linux and supports PATA (IDE), SCSI and SATA hard drives. DBAN can be configured to ...

5. Gutmann method - Wikipedia

   en.wikipedia.org/wiki/Gutmann_method

   The Gutmann method is an algorithm for securely erasing the contents of computer hard disk drives, such as files.Devised by Peter Gutmann and Colin Plumb and presented in the paper Secure Deletion of Data from Magnetic and Solid-State Memory in July 1996, it involved writing a series of 35 patterns over the region to be erased.

6. Data sanitization - Wikipedia

   en.wikipedia.org/wiki/Data_sanitization

   Remote wiping involves sending a wireless command to the device when it has been lost or stolen that directs the device to completely wipe out all data. While this method can be very beneficial, it also has several drawbacks. For example, the remote wiping method can be manipulated by attackers to signal the process when it is not yet necessary.

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 ...

8. Disk formatting - Wikipedia

   en.wikipedia.org/wiki/Disk_formatting

   Formatting a disk for use by an operating system and its applications typically involves three different processes. [e]Low-level formatting (i.e., closest to the hardware) marks the surfaces of the disks with markers indicating the start of a recording block (typically today called sector markers) and other information like block CRC to be used later, in normal operations, by the disk ...

9. Anti–computer forensics - Wikipedia

   en.wikipedia.org/wiki/Anti–computer_forensics

   The effectiveness of disk cleaning utilities as anti-forensic tools is often challenged as some believe they are not completely effective. Experts who don't believe that disk cleaning utilities are acceptable for disk sanitization base their opinions of current DOD policy, which states that the only acceptable form of sanitization is degaussing.