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/v3-uk/blog-post/2015297/dram-crack-break-disk-encryption
24 Feb 2008, Iain Thomson , V3
Researchers have found a way to foil disk encryption. A report from researchers at the Electronic Frontier Foundation, Princeton University and Wind River Systems concluded that many current consumer disk encryption programs can be compromised via a computer's DRam.
The problem is that data can remain in stored in memory even after the system is shut down. By cold-booting the system, an attacker could access data from the DRam and retrieve encryption keys.
But unlike many security problems, this is not a minor flaw; it is a fundamental limitation in the way these systems were designed.