How to change your Chess.com password
Passwords must be at least 8 characters long and include at least one uppercase letter, one lowercase letter, and one number. For a stronger password, use a mix of uppercase and lowercase letters, numbers, and symbols.
Web
Mobile
Tap 'More' at the bottom right and select 'Settings.'
Select 'Account' and then tap 'Password' at the top.
Enter your current password and your new password.
Tap 'Save Password' to apply the changes:
Check out this article if you've forgotten your password: I forgot my password. Can you help me remember?
Extra Security
If you are using a shared or public computer, always make sure you log out of the site completely before leaving the computer unattended.
If you forgot to log out from any computer, simply scroll down to the 'Extra Security' section on the Account settings page and click the 'Log Out on All Devices' button to sign out from those browser sessions.
To sign out of all mobile devices, just reset your password or username from any computer or mobile device. The next time you open the app, you’ll be asked to log in again.
Check out this article to learn how to keep your Chess.com account safe and secure: How can I stay secure on Chess.com?