Invisible ‘Covert' Drawer Lock Uses Magnets

What's the most secure place to hide something. A place that's not there, of course. Or the next best thing, a place that appears not to be there. And this is just what Quirky's invisible Covert drawer lock aspires to be.
As with any magic not involving mirrors, the Covert uses magnets. The gadget consists of three parts: a two-section lock and a magnetic key. The lock sticks both to the inside of the drawer's front panel and to the top of the surrounding cabinet (making it useful only for the topmost drawer).

Gadget Lab, Invisible ‘Covert' Drawer Lock Uses Magnets