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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.
According to the University of California, San Diego Center for Magnetic Recording Research's (now its Center for Memory and Recording Research) "Tutorial on Disk Drive Data Sanitization" (p. 8): "Secure erase does a single on-track erasure of the data on the disk drive. The U.S. National Security Agency published an Information Assurance ...
HDDerase is a freeware utility that securely erases data on hard drives using the Secure Erase unit command built into the firmware of Parallel ATA and Serial ATA drives manufactured after 2001. [1] HDDerase was developed by the Center for Magnetic Recording Research at the University of California, San Diego. HDDerase is designed for command ...
Magnetic storage media, primarily hard disks, are widely used to store computer data as well as audio and video signals. In the field of computing, the term magnetic storage is preferred and in the field of audio and video production, the term magnetic recording is more commonly used. The distinction is less technical and more a matter of ...
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 ...
Supported wipe methods Reports BleachBit: Andrew Ziem and contributors GNU General Public License: Windows, Linux: Yes external [1] on screen, Copy and Paste-able CCleaner: Piriform: Trialware: Windows, OS X: Yes external [2]? Darik's Boot and Nuke (DBAN) Darik Horn GNU General Public License: OS independent, based on Linux: No external [3]? dd ...
Magnets can erase or scramble that information, which can interfere with your ability to make a purchase. However, a magnet’s exact effect on a credit card depends on a variety of factors ...
Data is stored in the magnetic media, such as hard drives, floppy disks, and magnetic tape, by making very small areas called magnetic domains change their magnetic alignment to be in the direction of an applied magnetic field. This phenomenon occurs in much the same way a compass needle points in the direction of the Earth's magnetic field.
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