this post was submitted on 18 Aug 2023
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I didn't actually look more closely at how this works, but some kinds of memory are hard to safely erase. If I had to use this, I'd make sure there was a secure wipe of the whole thing minus whatever the system itself is using at shutdown.
It wouldn't completely break security, if that even makes sense as a concept, but it wouldn't help. Hardware security is the strongest kind.
Or you could encrypt the snapshot before it goes to sleep.
Again, you just have to be careful you've cleared all the other stuff on the RAM.
This is already a thing we need to deal with, security wise. An application making use of encryption doesn't know the condition of what it views as ram, and it could very well be transferred to a durable medium due to memory pressure. Same thing with hibernation as opposed to suspension.
Depending on your application and how sensitive it is, there are different steps you can take to deal with stuff like that.