no usually there is nothing on the device, its on a couple of sd cards if one sd card goes down i still have the other, (I never leave the sd in it, and delete the info off the device once backup are made). and what if you drop a paer wallet or a trezor in a lake, . I made a you tube video of it. https://www.youtube.com/watch?v=yOiTcHHV0sM&feature=youtu.be