It is recommended to change the passwords of your accounts from time to time. To change the password, first, visit the Bitdefender login page. Now, sign in using your Bitdefender login ID and password. When you have successfully signed in, click on your username at the top-right corner. From the drop-down menu, select the My Account option. Now, click on the Change Password tab at the top. On the next screen, you need to type your current password. Now, type the new password in the next blank. When you are done, click on the Change Password button. You can now sign in using your newly changed password.