I still don't understand why these don't have 9V battery attachment nubs, the way smart door locks kinda all do, instead of a traditional key as a backup. Yes, you'll still need to get hold of _something_ that outputs 9V or so (not necessarily an actual 9V battery) that might not be immediately at hand, but as this very story proves, the key might be far from readily at hand too. Plus, an "emergency" mechanical lock kinda reduces the (otherwise _potentially_ decent) security of an electrical lock you cannot reach with the ludicrous rakeability of a typical mechanical lock (or someone might just know where you keep that key, as it clearly can't be securely in the safe).
Yes, the external electrical contacts do introduce further opportunity for mischief if disabling the safe is the objective not opening it (by zapping it with high voltage), but even that could easily be worked around by internally routing the aux power input through a tiny, potted DC-DC galvanic isolation brick (costing pennies). At worst, an attack would blow that up, but the rest of the internals would be unaffected; and at any rate, one could do the same through the keypad contacts anyway so this doesn't seem to be of much concern.
And also yes, sure there could be a malfunction of the electronics or motor that would lock you out without a keyed backup - but let's be honest, that's about as unlikely as it gets, plus these safes would last a mere few minutes against someone with the authority to use physical brute force against them...
Biting the hand that feeds IT
