IPMI: Hack a Server That Is Turned Off
UnderAttack writes "A common joke in infosec is that you can't hack a server that is turned off. You better make sure that the power cord is unplugged, too. Otherwise, you may be exposed via IPMI, a component present on many servers for remote management that can be used to flash firmware, get a remote console and power cycle the server even after the normal power button has been pressed to turn the server off."
We keep the management network and the production network on separate physical networks. So if you get into a box, you still can't IPMI to any other box.
Also, this is not hacking, it's by design.
Saying "you can't hack ..." is just stupid because there's no bigger challenge. That's famous-last-words material right there.