A person may be able to access your bank account with your debit card, especially if they also have your PIN. Your debit card includes your card number, first and last name, CVV code, and card expiration date, among other information. This information can be used online, over the phone, or in person to access funds in your bank account. To improve your security, make sure to activate measures that your financial institution may offer, including warnings against suspicious activities, two-factor authentication, and more.