I guess you shouldn't have any information on your network that allows your wallets to be drained anyway ;-o
The miner only makes contact with the pool you specify and ethermine for the dev free, this can be easily verified and doesn't access any files directly other that it's own.

I could probaly think of better ways to steal money from than spending a year developing the miner like we did.

Anyway, total respect but we need to protect our IP too.