Claire had a Yahoo email account and forgot to reset her recovery phone number, so she's now locked out of her account. Leo says that she can try and log into the general Yahoo.com. If that works, then she should be able to go into her account and change the phone number. Here are ways to recover your Yahoo account - http://ccm.net/faq/36332-how-to-recover-your-yahoo-mail-account and here - https://safety.yahoo.com/Security/SECURITY_RESOURCES.html. The other option is to try and sign in from another computer that was signed in with before. If the cookie is still there, she could be able to gain access. Leo also recommends getting a gmail account and then have it go get the Yahoo mail. Also, she can contact yahoo via Twitter at @YahooCare.