There are a lot of people who ask if there are hackers in FIFA Mobile. The answer is yes, there definitely are hackers in FIFA Mobile. However, the number of hackers is very small compared to the overall player base. The vast majority of players are honest and play the game fairly.
That being said, the presence of hackers can still ruin the experience for other players. If you suspect that someone is hacking, be sure to report them to EA so they can take action. In the meantime, just try to avoid playing with or against anyone that you think might be cheating.