“In a response to the complaint of a group of state attorney generals, Google’s lawyers - Paul Yetter at Yetter Coleman - filed a response, but accidentally forgot to redact critical information.”
The botched redaction exposed Project Bernanke, where Google’s own ad exchange allegedly front-ran its customers’ bids. It also exposed more on the side deal with Facebook to stay out of Google’s auction business. None of this was supposed to be public. Antitrust cases run on secrecy, and Google only lost it because a law firm missed a black box.