- If you have forgotten your password , you will not be able to continue. Please see our article on recovering a lost or forgotten password for help signing in.

To change your password: Sign in at: http://www.yahoo.com/ Click your name in the upper-right portion of the page and then click Account information

After you password is recovered, we recommend you go into the Yahoo! Account Information page and add your mobile number. Our article entitled How to add or change<...

For US and Canadian customers, password resets can also be accomplished using a mobile phone or other SMS device, if you have previously added the number to your account.<...

To edit a contact's information: Sign in to Yahoo! Messenger for iPhone. Tap Contacts

If you think that someone is using your account to send SPIM to the contacts on your Messenger List, we recommend that you change your passwordMessenger iPhone

Click the Change your password link

If you don't know why your account was deleted, there's a chance that a third party deactivated it. As a result, we recommend that you change yourMessenger Mobile | Messenger iPhone | Messenger Android

Note : You will not be able to reset the application if you are unable to sign in to Yahoo! Messenger for...