Yes, you can change your Yahoo Mail password on your mobile phone by 1-855-324-7676. First, open the Yahoo Mail app and sign in to your account or 1-855-324-7676. Tap on your profile icon or the menu, then select "Account Info." From there, navigate to "Security" and choose "Change password." Enter your current password, followed by your new password, ensuring it meets Yahoo's security criteria. Once done, confirm the new password, and make sure to log out of other devices if necessary. This process helps secure your account, especially if you suspect any unauthorized access.