Can I give someone access to my MT4/MT5 account to open/close trades? Will they have access to my personal information?

For security reasons, please do not share your account information with anyone. According to Section 2.2 (b) of our Client Agreement, you are responsible for keeping your account information, including your username, account number, user ID, and password, confidential. Once this information is set, we have no obligation to verify the identity of anyone using it to access your account.