Changes made today by Apple to the password requirements for access to MobileMe have caused problems accessing MobileMe’s Find My iPhone service. It appears that a change in the policy have meant users whose passwords no longer meet the complexity requirements ( 8 characters with one number and one upper/lower case character ) were unable to able access to Find My iPhone.
To correct the problem and enable access all you have to do is go to the iTunes store, and create a new stronger password. Open iTunes and click on the iTunes Store, then click on your Apple ID ( at the top right of the iTunes window ).Your Apple account information should be displayed, click on the Edit button next to your Apple ID then on the following screen create a new password and click Done. You should find that once you have done this you can now login to the Find My iPhone service ( either the iPhone app or through the http://www.me.com site )
