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Can you explain the reason why a single zero-fill pass is enough to ensure a hard drive is permanently unrecoverable, and why standards such as DoD and Gutmann are not necessary?It doesn't matter. A single zero-fill pass(properly executed) is all that's ever needed to ensure a drive is permanently unrecoverable. Anyone who tells you otherwise doesn't understand the technology. Standards such as DoD and Gutmann were cooked up by people with little knowledge of the tech and adopted by people with even less understanding.
Only by people who don't know what they are talking about.random stream (also known as "random data overwrite") is generally considered to be a more secure method
No, it doesn't. That's just a story some paranoid people keep throwing around on the internet.because filling a device with zeros can leave patterns in the data that can be used to recover it
DoD standards exist because data containing government secrets must be protected against hypothetical future threats of being breached (even if said hypothesis are defunkt).why standards such as DoD and Gutmann are not necessary?