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DoD 5220.22-M is sometimes cited as a standard for sanitization to counter data remanence. The NISPOM actually covers the entire field of government–industrial security, of which data sanitization is a very small part (about two paragraphs in a 141-page document). [5] Furthermore, the NISPOM does not actually specify any particular method.
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 ...
DOD 5220.22-M, National Industrial Security Program Operating Manual (NISPOM), 28 February, 2006; DODD 5200.1-R, Information Security Program, January 1997; EO 13526, Classified National Security Information, 29 December 2009; Intelligence Community Authorized Classification and Control Markings, Register and Manual, vol. 5, no. 1, (2012)
The general term for this problem is data remanence. In some contexts (notably the US NSA, DoD, and related organizations), "sanitization" typically refers to countering the data remanence problem. However, the retention may be a deliberate feature, in the form of an undo buffer, revision history, "trash can", backups, or the like.
Parliament of Serbia, Law on confidentiality of data. (in Serbian). U.S. Department of Defense National Industrial Security Program - Operating Manual (DoD 5220.22-M), explaining rules and policies for handling classified information.
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 ...
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 ...
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.