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It appears to me that RAM content is not cleared completely when you power down the device. Encryption keys may still be present in memory So powered down, you
by rogeryu 11y ago
It appears to me that RAM content is not cleared completely when you power down the device. Encryption keys may still be present in memory So powered down, you freeze the phone, which keeps the RAM at its current state, and then with some magic tricks you can read that memory. So powering down is not enough. In the future I guess powering down needs an extra action, wiping memory first.
- andrewaylett 11y agoIn this particular case, the freezing happens while the power is on with the data you want in RAM. If the phone has already been switched off without freezing, it will lose the contents of its RAM pretty quickly.