Ad company I work for buys one of our traffic partners. I'm code reviewing their system to document it and find a comment describing how they defraud us.
That sounds like an interesting story. Are there any more details that you're willing/at liberty to divulge?
Standard advertising fraud with faking traffic data. I handed it off to my manager who sent it to the CTO and from there it was dealt with at the executive level. Not sure all the details but I know the CEO of the other company went from picking furnishings for a new larger office to packing a box within a day or two and most of the rest of the acquired company was let go a short time later.