Casinos always show a picture of glamour, excitement, and the thrill of gambling. However, throughout history, there have been individuals and groups who sought to exploit these establishments through ingenious scams and deceptions. In this blog post, we will delve into the top 10 biggest casino scams in the world, revealing the intricate details and the captivating stories behind each incident. From clever card manipulations to high-tech schemes, these scams will leave you in awe of human ingenuity, while also reminding us of the importance of vigilance and security within the casino industry.

The MIT Blackjack Team

One of the most infamous casino scams, the MIT Blackjack Team, operated from the 1970s to the early 2000s. Comprised of talented students from the Massachusetts Institute of Technology (MIT), this group utilized card counting techniques to beat the house in blackjack. Their sophisticated system involved signal codes, team play, and meticulous observation, leading them to amass millions of dollars from casinos worldwide. Definitely worth an entry in top 10 biggest casino scams in the world!

The Roselli Brothers

Brothers Louis and Frank Roselli orchestrated an audacious roulette scam in the late 1970s. They secretly installed a magnetic ring on the roulette wheel, allowing them to control the ball’s movement. With this clever device, they consistently hit their desired numbers, resulting in significant winnings until their eventual arrest.

The Tran Organization

Hailing from the Vietnamese community in the United States, the Tran Organization utilized an elaborate card-marking scheme to cheat at baccarat. Using special ink and contacts lenses, they marked the cards with invisible ink. This allowed them to identify the value of each card during the game, giving them a substantial advantage over the casino. Their criminal activities spanned multiple states and resulted in millions of dollars in illicit gains.

The Edge Sorting Technique

Professional poker player Phil Ivey, along with accomplice Cheung Yin Sun, employed an ingenious technique known as edge sorting to exploit the flaws in the manufacturing of playing cards. By identifying minute imperfections on the card backs, they gained an advantage in high-stakes baccarat games, winning over $20 million from prominent casinos before legal action was taken against them.

The Laser Scam

In 2004, a team of Eastern European hackers used a laser scanner hidden inside a mobile phone to exploit the security flaws of a casino’s slot machines. By scanning the internal mechanisms, they could predict the winning combinations, resulting in substantial financial gains. The operation was eventually exposed and led to the arrest of the perpetrators.

The Inside Job

In a stunning display of audacity, Phuong Quoc Truong, along with his accomplices, orchestrated a complex inside job at the Crown Casino in Melbourne, Australia. By bribing a casino dealer and hacking the surveillance system, they successfully stole more than $32 million in what remains one of the largest casino heists in history.

The Monique Laurent Scam

Monique Laurent, a Frenchwoman with exceptional memory and dexterity, manipulated the roulette tables in the Casino Deauville in the 1970s. She would distract the croupier and swap the original ball with a magnetized one. With this simple yet effective technique, she managed to control the ball’s landing spot, winning large sums of money before her eventual arrest.

The Biased Wheel

In the early 1990s, a team of Eastern European gamblers identified a biased roulette wheel in the Ritz Casino in London. After analyzing thousands of spins, they noticed that the wheel had a predictable pattern, leading to certain numbers appearing more frequently than others. Exploiting this flaw, they walked away with millions before the casino caught on to their scheme.

The Phil Ivey Baccarat Scandal

Renowned poker player Phil Ivey makes another appearance on this list, this time for his involvement in a high-stakes baccarat scandal. By persuading the casino to use a specific brand of playing cards and exploiting subtle defects in their design, he and his accomplice were able to gain an unfair advantage and win approximately $10 million. The incident led to a legal battle between Ivey and the casino, highlighting the complexities of the scam.

The John Aspinall Case

John Aspinall, a British zoo owner and avid gambler, devised an intricate plan to cheat the Clermont Club in London during the 1960s. Aspinall employed a team of dealers who were skilled in false shuffling, allowing him to identify and control key cards during poker games. This audacious scheme resulted in substantial winnings for Aspinall until authorities eventually uncovered this.


These top 10 biggest casino scams shed light on the lengths some individuals and groups have gone to exploit casinos for financial gain. From high-tech gadgets to subtle manipulations, these scams remind us of the ongoing battle between cheaters and the casino industry’s security measures. As technology advances, new challenges emerge, making it vital for casinos to remain vigilant and adapt their security protocols to thwart potential scams. Ultimately, these captivating tales serve as cautionary reminders that in the world of gambling, trust and integrity must always be upheld to ensure a fair and enjoyable experience for all.

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