![]() In the 1990s, the early days of data destruction, as people look for secure ways to permanently erase data from hard drives, overwriting was indeed considered. The Defense Security manual specifically disavowed overwriting as an acceptable method of sanitation for magnetic media in the June 2007 edition of DSS Clearing and Sanitization Matrix (C&SM). It claims that the NISP Operating Manual (DoD 5220.22-M) advocates overwriting hard disk drives as a secure method of media sanitation. It’s been replaced by modern standards like the NSA/CSS policy manual 9-12 storage device sanitization and destruction manual.īut like the urban legend of the alligators in the New York sewer system, the data wiping myth persists. These patterns are designed to effectively remove the magnetic remnants from the hard disk making it impossible to recover the data.Wiping standards have been debunked by the DoD. ** Based on Peter Gutmann's paper " Secure Deletion of Data from Magnetic and Solid-State Memory". Peter Guttman - Fills with a special number pattern in 35 passes.* Defined in the National Industrial Security Program Operating Manual of the US Department of Defense. E, C and E) - Fills with a special number pattern in 7 passes. E) - Fills with a special number pattern in 3 passes. Pseudo-Random - Filling with pseudo-random numbers in one pass.Zeroes - Filling with zeroes in one pass.You can choose from several overwrite patterns: Secure Data Eraser erases files completely, so sensitive information CAN NEVER BE ACCESSED OR RECOVERED using any data recovery software or even in a special data recovery laboratory. Secure Data Eraser overwrites data in either fast or secure erase algorithms with multiple passes using overwrite patterns designed to achieve military-strength security. Secure Data Eraser is a solution to keep your computer privacy: file undelete for FAT & NTFS partitions
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