[rdtsc]

> Almost by definition, college classroom settings and the students who thrive in them are not a natural fit for the kinds of disruptive, rebellious and troublemaking instincts that lend themselves to finding new ways to compromise computers.

An effective way is to channel that make them compete like they'd do in the real world. Set up a bunch of VMs on an isolated network with a game server running of some sort, so they'd have to do trade or do an auction. But at the same time the packages are slightly outdated on the machine, a few too many ports open, etc the protocol has a few weaknesses. And see what they'd do. Of course that takes a lot more resources and dedication from the instructor.