Let me tell you a quick story: I have a colleague who is overprotective of their "special" computer files. One time, this person left their computer open and I, needing to use one ASAP for important things, used it and accidentally clicked on a folder I wasn't supposed to see. Suffice to say, this colleague and I are not on good terms anymore, and the awkwardness between us is starting to drive each other to a cliff.
You can spare yourself this kind of trouble if you have a Kingmax's iKey. This tiny device is a fingerprint sensor that is used to lock laptops or folders. Quite neat, eh?
The iKey is designed to encrypt your folders so that no unauthorized person will ever see what it is you're hiding. Up to ten fingerprints can be recognized - one for each of your fingers. Kingmax developed the iKey so you can lock your computer so anyone without the iKey cannot open it.
Since this thing may be the key to revealing your deepest, darkest secrets, it's recommended that you keep the iKey locked and hidden somewhere safe, so you can always open your files when you need them.