When I first heard about cold boot attacks I thought this was another disconnected-from-reality-cannot-be-used-in-real-life kind of research, but after watching the video on the Princeton University website I realized that this is a real problem. Namely, unlike common perception, computer memory takes time to fade out after you turn the computer off. So much time, in fact, that you can read it and extract encryption keys from it to later unlock encrypted data. A very interesting research.
Amit Schreiber's Blog | הבלוג של עמית שרייבר