Comment Re:Not so fast... (Score 1) 172
There is probably a very good reason when going up against "the bad guys" you only trust thermite, and going up against internal investigators and auditors, "trust us, writing zeros is good enough"
It depends on the drive technology. If you were in the service in the 1970s/1980s, where hard drive tech was MFM or RLL or similar, then yes, thermite was the correct option. For 2011-era SATA drives, zeros are almost good enough, and overwriting with a random data stream is most definitely good enough (the amount of time and equipment needed to try to recover a modern drive that has been overwritten with a random data stream is so prohibitive that it is usually easier and cheaper to just threaten someone with harm to coerce information out of them).