Comment by drpossum

I've unlearned over my years that trying to come up with what malicious actors can do under what scenarios and conditions isn't worth the effort, because they are many, know more than me, have different goals than me, and I am one. There's endless permutations of environments and additional weakness or scenarios or a particular sensitivity of information that you don't or can't consider that make some attack really painful. For this case, maybe CPU usage or aggregate changes in CPU usage tips off an attacker on what someone is ramping up internally that can be used for espionage or even timing attacks.

What I have learned in place of that is plug holes to minimize attack vectors.