Technically, yes. It’s not illegal for them to do so. However, many casinos don’t practice this habit. In fact, if you’re winning too much at a casino, they’re incentivized to entice you to continue playing so you can eventually lose and return them their profits.If you are found cheating, you will be escorted out of the casino and banned. In some cases, you can even be prosecuted. The same principle applies to online casinos.