Yeah I don't know why "hack" is more obvious than this. Central control pushes an update, it bugs out and cooks a dozen commissaries' frozen foods. Smart hack would be to do this randomly and fly under the radar.

I'm in the firmware bug camp too. Over/under on "the remote management server went down and a bug on all the freezers decided to put them back into some form of local control where its first action was to do a defrost cycle then put it back into offline service"?