You must keep your account credentials confidential and not allow others to access your account; all actions made with your login are assumed authorized by you.
You are responsible for maintaining the confidentiality of your Account. Your Username / Password and Account Number / PIN combinations protect access to your account. You should not permit anyone else to access the service through your account. All wagers, financial transactions and account changes made through your account or through Player Services after providing this confidential access information are assumed to be authorized by the account holder