Here's an interesting note too.... You know all those files that you scan and copy at the office copier? Those bits of data also get stored on a hard drive built into the copier. They are suppose to be deleted but often they get left on the copier when it gets recycled. So don't forget that you have no access to that information and should someone decide to go trashing an old copier, they can end up with your scanned information!
Yes, I had heard about this before too and that's kind of scary. Maybe that's how a lot of top secret data in the world leaks!