Malfunction, EMP, remote shutdown (depending on features they add on launch). Overall, no one will have your firearm if you know what you're doing. Maybe beginners might like this, but any real veteran citizen (USA) should not carry one of these around. Reliability is a number 1 requirement, safety from tampering is part of this requirement. If the system can be hacked to disable the gun entirely, guess what... you're screwed.