Mikko Hypponen Hard Quotations

You can get the best locksmith in the world to design the best lock he can design, is it pick proof? No, it's not: it can be very hard to pick, but it is pickable. Because you can get, say, the next 10 best locksmiths, and give them unlimited money and time, they will figure out a way to pick it.

This is nasty, as this is done on all mounted drives, ie. any drive that has a drive letter. So it might affect your USB thumb drives, external hard drives and network drives. Also, if you're taking daily automatic backups, you might end up backing up the corrupted files over good files.