You can steal data from a computer by touching it
 

Normally, breaking a PC's security involves either finding security exploits or launching brute force attacks, neither of which is necessarily quick or easy. However, a team at Tel Aviv University has come up with a potentially much simpler way to swipe data from a computer: touch it. If you make contact with a PC while you're wearing a digitizer wristband, you can measure tiny changes in electrical potential that reveal even stronger encryption keys (such as a 4,096-bit RSA key). You don't even have to touch the system directly in some cases -- researchers also intercepted keys from attached network and video cables.

http://www.engadget.com/2014/08/23/e...=rss_truncated