It overwrites the drive or any storage device with a random character.Then the hard dive locations will be overwriten by 0xCA.It overwrites all addressable locations with 0x35.So as to clear and sanitize the information stored on the media. for data security and protection, the organization concerned is National Security Efforts Sector.ĭoD Standard 5220.28 STD recommends the approach of overwriting all the locations with a character, its complement and then a random character and then verify. ITs standards comes from more than 20 organizations adopted by DoD. It provides a uniform series of specifications, standards, and related documents including many recommendations for data security, Internet security, and many other areas. The United States Department of Defense (DOD) is a federal agency responsible for maintaining and organizing standardization of materials, facilities, and engineering practices. Before going to the DoD 5220.28, first get to know in brief about DoD. DoD Standard 5220.28 STD is provides highest security level for data. To achieve this, US Department of Defense (DOD) has developed some of the sanitization standards. Hence, the drive should be cleaned up beyond recovery. There are many recovery tools that can recover them even after formatting the storage device several times. File deletion or formatting the device will erase your data, but it is just temporary. since, there are chances of misusung your data. Confidential information whether personal or official should be destroyed or erased completely before you dispose your hard drive or any storage device.
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