Yahoo password recover? [Help]

[Legu]

Hi lately i sucessfully "hacked" someone and got his yahoo account.
Now i changed the password, the recovery question/answers, also delted the secondary emails.
And still he somehow got access to his account and changed the pass -.-
How is this even possible? Cant believe this...

[KEN]

His yahoo could be connected to his mobile phone so in that way he could get the "changed" password by a sms.
Or maybe he guessed the new pass?
was it "fucker" or "loser" or something similar? then he could've guessed :@

[Legu]

Hmm i have seen this mobile phone thing on facebook, but never tought that yahoo has it too. Anyhow i didnt see it under the options and also have no idea where it is...Also nope the new password wasnt "loser" because it was the original one ;)

Anyhow i will just read some faq from yahoo, but so far it seems that i did everything allright. I think if there is an option for the mobile phone thing, i cant really do much about it. So next time i will have to dl all the data and delete the account, or dont change the pass at all and hope that he wont change it.(risky)

[Sethioz]

Had this too. Easiest way is to do it yourself. Use proxy, change your details and say your account was stolen. see what options they offer.
I'm guessing it has something to do with like hotmail, they will ask you for like 5 most commonly used emails and some other details, like where you usually login ..etc.