Comment by insanitybit

> something that our systems are meant to prevent

What prevention method did they take? Like, did they run with hyperthreading enabled or something by accident?

Did they discover a new cache timing technique or is this just the standard stuff?

If they just had hyperthreading on maybe they need to hire someone who knows more about this stuff.

Two VMs should never be sharing a physical core. If they don't know this, yikes.