Many of the incidents reported as "hacked" are the result of shared/sold/traded accounts where those other than the original registrant has access to all the information, including email access, for account verification. We have found it to be quite rare that the account was truly "hacked".
To keep this from happening to you, NEVER share your account. Never give anyone access to the email you signed up with. We are unable to help those that claim to be hacked when there are multiple players on an account as it would be difficult to verify who the true account owner is.
If you have never shared your account and have evidence of possible unauthorized access to your account, please Contact Customer Support （https://fb.gamesamba.com/help/new） and we’ll investigate. Resolution will depend on the findings.