It seems like 'random' interference would be easy to produce by mimicking the behavior of these components in intervals in order to obscure the collected data. Even though the interference wouldn't be truly 'random', it would certainly increase the amount of data that needs to be collected in order to effectively remove it from the sound recording.

The best thing is always to have users with technical skills in the business. IT is wasteful spending when it's in a silo. That being said, there are places for IT - like SOx permissions, shared infrastructure maintenance/config, other...