Log in to Yahoo Mail and go to Account Info > Go > Account security > Change Password. Change your password if you suspect that your password has been compromised and someone has access to your Yahoo Mail account. If your password is too hard to remember and you're constantly checking your password manager, use a different password.

If using the Yahoo Mail app, tap Manage Accounts. Tap Account info. Tap Security settings. Enter your security code. Tap Change password. Tap I would rather change my password. Enter the new password and its confirmation and tap Continue. If these steps don't work in your app, change your password using your mobile browser.

Yahoo Mail will take you to an “Access & Security” page. Here, scroll down to the “Password” section, then tap “Change Password.” On the “Create a New Password” page that opens, tap the “New Password” field and enter a new password for your Yahoo account. Then tap “Continue.” And that’s all.