How to Change My AT&T Passwordby Chad Buleen
You can access all of your AT&T account information online at att.com. You also can log in to the site to view potential upgrades, add features and pay your bill. You must have a user name to be able to log in to your account. You also need a password. To keep your account secure, you may want to change your password from time to time.
Visit the AT&T home page (see Resources).
Click "Log In."
Enter your user name and current password, then press "Enter."
Click "Your Account Settings."
Click "Password Options."
Type your new password, then type it again to confirm the change. Click "Save."