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I am wondering, what will happen to data in RAM memory after VM is shutdown?
Since the hosting server is still running and RAM is still powered, I believe that the data will stay there until they will be override by other VM/program, right? Or do you know if the implementations of virtualization software are guaranteeing that the memory will be erased? If so which one? Or in case storing some sensitive data I should make sure that before shutting down the VM all data on RAM are overridden?
Host OS will reclaim the memory and zero it out. It is no different from any other program shutdown. – user364455 – 2015-12-17T11:04:32.457
That's a pretty good question. I think it boils down to "can you perform a cold boot attack on a VM".
– gronostaj – 2015-12-17T11:47:39.4431Interesting to mention the cold boot attack, however the allocated RAM space is wiped before it is given back to the host machine. @gronostaj – None – 2015-12-17T12:43:34.270