A few days ago I was cleaning the screen of my notebook, which’s a Lenovo X61 Tablet. I’m using it everyday and especially for my studies I’m working in tablet-mode, which means that I have to clean up the screen about every two weeks. During cleaning I recognized, that there are many fingerprints of mine on the touchscreen. Whoops… haven’t we seen more than enough how to fake fingerprints? I think we have and did you see that there is a built in fingerprint reader in the X61. Let’s think about this. We’ve got more and more devices which have a touchscreen and at the same time, more devices allow you to log in with your fingerprint. This means, that in the near future an attacker don’t need any password of you, he just steals a device and then build his key (the fingerprint) right from the touchscreen.
To make this more visible to you, I’ve made a photo of my screen:
As you can see, this is really a good enough fingerprint to copy it.
PS: I smudged three lines on the picture because it’s my own fingerprint 