One of Monroe's worst nightmares is Tronix getting corrupted or having a fatal virus or possibly being hacked by an evil A.I. I mean...he technically is his son so the fear is logical. Monroe is almost constantly checking Tronix's systems because he's aware of the fact that he rushed building him and he is made of somewhat cheap materials and scraps.

Thankfully a scenario like this would be pretty unlikely to happen at least for the long term but...You can never be too careful.