If you have physical access, you have everything (given sufficient time and effort). This will always be true, though dedicated security hardware (TPMs, etc) might drive up that time and effort requirement to get at their contents.
The access provided by these attacks is a far cry from physical access. There are plenty of things that can be done to mitigate them (removing data from the cache, for example).
Of course, this entire post is about how to disable those mitigations, as they almost always come with a performance penalty.
The access provided by these attacks is a far cry from physical access. There are plenty of things that can be done to mitigate them (removing data from the cache, for example).
Of course, this entire post is about how to disable those mitigations, as they almost always come with a performance penalty.