It would be inserted in the machine through the air vent, looking for the switch which activated the payouts. This was made from a guitar or piano string holding a bent metal rod. This called for a new invention - the monkey paw. Once casinos caught up with the top-bottom joint, the design of slot machines changed yet again. This would trigger the slot machine to dump its payload. To use it, the device would be snaked through the payout chute until it tapped a switch. It was named the top-bottom joint, and made its way to Vegas casinos and stayed there through the 80s. In the 70s a type of “cheating device” was created out of a guitar string or wire (for the “bottom”) and a metal rod with bent ends (for the “top”). There was a time when these fake coins circulated all over land-based casinos, up until casinos picked up on the scheme. Cheaters could put these coins into slot machines and when they would win, the slots would give out real money. Fake coins were made in bulk from a cheap, hard material. Play slots at Videoslots Counterfeit Coins For Slot MachinesĪnother way to hack slot machine games was to use counterfeit coins. Again, this will not work in today’s casinos. This could be repeated indefinitely until you were satisfied with your winnings. When placed into a slot machine, the first initial sensor of the machine would register the coin as valid, but the second one would discard it. This is called the “yo-yo” method, and casinos would laugh you out of the building if you tried it today.Ī similar method to “yo-yo-ing” involved coins that are shaved around the edges. Then once it registered the deposit, pull the coin out with the string and begin playing. This trick involved tying a string around a coin and inserting the contraption it into a slot machine just enough for it to register the coin.

You probably remember this one from cartoons, it was once used so much in casinos and is so widely known nowadays that it has become a cliché. Here, we’ll take a look at some of the popular techniques that were used back-in-the-day. But how has the evolution of cheating the casino industry gone? Clever engineering and good mechanical know-how have led to some of the best casino exploits in the past. Humans have likely been trying to cheat the system since the very first system (whatever that was).

So, what can we learn from failed black hat hackers of the past? Play slots at Videoslots History of how to hack slot machine games

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