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Darik's Boot and Nuke, also known as DBAN / ˈ d iː b æ n /, is a free and open-source project hosted on SourceForge. [2] The program is designed to securely erase a hard disk until its data is permanently removed and no longer recoverable , which is achieved by overwriting the data with pseudorandom numbers generated by Mersenne Twister or ...
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.
By default, shred also shreds file slack (unused space in file allocations). For example, a 5 KB file on a file system with 4 KB clusters actually requires 8 KB of storage. Shred has an option to overwrite only the file itself, as well as an option to delete the file after it has completed operation.
Disk overwriting programs that cannot access the entire hard drive, including hidden/locked areas like the host protected area (HPA), device configuration overlay (DCO), and remapped sectors, perform an incomplete erasure, leaving some of the data intact. By accessing the entire hard drive, data erasure eliminates the risk of 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 ...
High-level formatting is the process of setting up an empty file system on a disk partition or a logical volume and for PCs, installing a boot sector. [1] This is often a fast operation, and is sometimes referred to as quick formatting. Formatting an entire logical drive or partition may optionally scan for defects, which may take considerable ...
Eraser is an open-source [1] secure file erasure tool available for the Windows operating system. [2] [3] [4] [5] It supports both file and volume wiping.[6] [2 ...
Hard disk drive (HDD) FDE (self-encrypting drive) Enclosed hard disk drive FDE; Removable hard disk drive FDE; Bridge and Chipset (BC) FDE; Hardware designed for a particular purpose can often achieve better performance than disk encryption software, and disk encryption hardware can be made more transparent to software than encryption done in ...