Casino slots can be hacked, but the chances of this happening are very small. Casinos keep track of all player activity and if they suspect that a player is cheating, they will take appropriate action.
In general, casino slots are not particularly susceptible to hacking. Slots typically use random number generators (RNGs) to determine the outcome of the game, and as long as these RNGs are not easily accessible or manipulated, it is extremely difficult to cheat at a slot machine.
However, there have been a few cases where hackers have been able to access casino slot machines through remote access tools (RATs). In these cases, the hackers were able to control the machine and alter its outcome.
But as mentioned earlier, this is a very rare occurrence and is not generally done in order to cheat at the slot machine itself.