https://www.wired.com/2017/02/russians-engineer-brilliant-slot-machine-cheat-casinos-no-fix/

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, the St. Petersburg team transmits a list of timing markers to a custom app on the operative's phone; those markers cause the handset to vibrate roughly 0.25 seconds before the operative should press the spin button.

Lately, if I filtered 'Russia' out of my newsfeeds there'd be nothing left to read.