wow:
operatives use their phones to record 25 spins on a game they aim to cheat. They upload that footage to a technical staff in St. Petersburg, who analyze the video and calculate the machine’s pattern based on what they know about the model’s pseudorandom number generator. Finally, it transmits a list of timing markers to a custom app on the operative’s phone; those markers cause the handset to vibrate 0.25 seconds before the operative should press the spin button.