The Amsec EST916 has been shown to open with just a jostle or two. It’s not exactly clear from the video below whether the safe is re-locked after being closed, but even so, its inability to stay shut after just a drop or two makes it bad even for a cabinet. None of the other safes up for DefCon scrutiny are bad enough that they can be fumbled open, but many are vulnerable to even the most crude attempts at access. If you were looking for yet another gun-related safety issue to worry about, this might be it.”]
Source: https://gizmodo.com/kid-opens-a-gun-safe-just-by-jostling-it-around-5929574