Controlling who can run an executable

[Istvan Albert]

> I could ask her, "If you can't break it is that good enough security?"

Guess not. Most non-programmers think everyone else who knows some
programming is a some sort of hacker genius.

Instead come up with a simple solution then explain her how it will
works. I think in the ensuing conversation you'll find out more on what
approach would put her mind at ease.

Istvan.