"Terabytes of data sourced from Apple's TestFlight have been leaked online, with ... thousands of builds of iOS Apps and Games dated from 2012 to 2015"

https://appleinsider.com/articles/23/12/18/terabytes-of-testflight-game-betas-from-2012-to-2015-are-on-the-internet-and-its-not-clear-how