It is believable they might be worried about sabotage. Fine. It's more surprising that they'd do this themselves. Why not hire an outside firm of some sort? Hel

It is believable they might be worried about sabotage. Fine. It's more surprising that they'd do this themselves. Why not hire an outside firm of some sort? Hell, they have so much money, they could afford to plant employees at all of their competitors and pay them in an untraceable fashion, or through a third party to do "competition analyzation". Then today they could say they're Shocked, shocked! At the misconduct of this contractor and they're going to sever all ties and withhold payment until a third party review has taken place. While moving all the actual agents to another third party, repeat.