Not entirely - I wrote a lot of numerical backend code intended for 24/7/365 continuous use in the face of potentially any input .. aquisition | instrumentation equipment failures can produce glitch inputs just as damaging as delibrately crafted malicious inputs from a hacker reverse engineering existing code.
The common ground being code that has to be robust in the face of any input has to be (correctly!) verified, constrained within hard resource limits, have graceful fail over behaviour, some measure of sanity checking, etc.
Otherwise, if an e\/il hax0r doesn't get you .. mother nature and sheer bloody chance will.