Talk:Data remanence

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Cold book attacks and memory testing

Latest comment: 13 years ago1 comment1 person in discussion

I removed this statement from the article:

It is also possible to prevent data remanence in RAM by running a memory testing tool, such as Memtest86, in order to overwrite the entire RAM.

As far as I can tell, this is based on a misunderstanding of how cold boot attacks work. At the time the attacker obtains the machine, the key data is still in memory because it is actively in use by the decryption algorithm, not because it is left over in unused portions of memory. They then reboot and immediately read the memory. The person defending has no opportunity to run anything between the reboot and the attack, since only BIOS code runs before the attacker's boot device begins execution. Even if the BIOS is configured to wipe the memory before boot, which would be the closest meaningful mitigation measure, they can circumvent this by moving the memory to another PC under the control of the attacker. Dcoetzee 01:18, 13 October 2011 (UTC)Reply

Grammar slip

Latest comment: 9 years ago1 comment1 person in discussion

"Modern hard disks often feature reallocation of marginal sectors or tracks, automated in a way that the OS would not need to work with it. "

What does "it" refer to? Sorry, if I knew I would have fixed it.

David Lloyd-Jones (talk) 06:48, 28 February 2016 (UTC)Reply

External links modified

Latest comment: 8 years ago1 comment1 person in discussion

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External links modified

Latest comment: 7 years ago1 comment1 person in discussion

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