Cold Chip Security Risk?

Scientists are working on a new super chip capable of running at 500 Ghz, 100 times faster than a desktop PC

According to this article boffins are developing super fast chips - the only down side being that they can only run at near absolute zero. Of course the worry for us security types is that these chips could be used to power a brute force attack against our algorithms, especially with the science types telling us they will be developing a chip capable of running at 1000 Ghz.

Meanwhile if you see a shady character hanging around the server room with a PC and a bag of ice cubes you can probably guess what they are up to.