In 2001 the DoD released an update to the DoD 5220.22-M standard, which changed the recommended number of overwrite passes from three to seven. Third pass: All addressable locations are overwritten with a random character Second pass: All addressable locations are overwritten with binary ones The process for the 5220.22-M 3 pass is as follows: The DoD 5220.22-M 3 pass methodįirst pass: All addressable locations are overwritten with binary zeroes It is used by businesses and organisations to protect their data from unauthorised access and disclosure. It provides guidance on the sanitisation of data storage media. ![]() The DoD 5220.22 data destruction standard first appeared in 1995, long before the widespread use of smartphones, tablets, and flash-based storage technology. We will also explain which method is right for you when erasing data to the DoD Standard. In this article, we will discuss what the DoD 5220.22-M is, and we will compare it to NIST 800-88.
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