True however that was in very controlled circumstances. The RAM chips have to be either physically removed or very quickly chilled in order to extract the key. Possible yes, really feasible? Um no.
This works only if system was on in previous 3-5 minutes. And even then its not 100% effective. Keylogger, malware or social engineering might be more effective in most cases.
[–] ImSureImPerfect [S] 0 points 1 point 1 point (+1|-0) ago
Jesus. That seems like a little much, but I guess if we're talking about perfect protection it might be the only way.
I'm suddenly very glad that I don't need encryption so good that it's backed up by thermite.