Casinos do not use magnets on roulette tables to alter the outcome of the game. The idea that magnets can control a spin’s result is mostly a myth, commonly linked to older land-based casinos. In modern online casinos, roulette is powered by a Random Number Generator (RNG), which is meticulously tested for fairness by independent agencies like iTech Labs.
In today’s land-based casinos, advanced security systems and surveillance cameras—often referred to as the 'eye in the sky'—carefully monitor both players and dealers. This high level of security makes it nearly impossible to use magnets or any other form of manipulation.