” The DoD 5220.22-M ECE method is an extended (seven-pass) version of the DoD 5220.22-M. This “DoD long wipe” runs the DoD 5220.22-M (E) ... When and why was DoD 5220... · How federal & private sector...
DoD 5220.22-M is a data erasure standard that was published by the DoD in 1995 for institutions that require high levels of security, such as the Pentagon.
The 7 pass process is as follows: Pass 1: Overwrite all addressable locations with binary zeroes. Pass 2: Overwrite all addressable locations with binary ones.