Yahoo! To Shutdown Unused Accounts

IN AN EMAIL SENT TO YAHOO! USERS WEDNESDAY, the webmail company announced that due to congestion it will be shutting down all unused accounts soon. The same notice (believed to be fake) contains instructions on how to prevent a Yahoo! account from being deactivated.

You may have received the following in your inbox:
From: "Yahoo Accounts Service" <yahoo.account@yahoo.com>
To: yahoo.account@yahoo.com

Dear Valued Member,

Due to the congestion in all Yahoo!users accounts, Yahoo! would be shutting down all unused accounts. In order to avoid the deactivation of your account, you will have to confirm your e-mail by filling out your Login Info below by clicking the reply button. The personal information requested are for the safety of your Yahoo Account. Please FILL IN all requested information.

Username: ............................................
Password: ............................................
Date Of Birth: .......................................
Occupation............................................
Country Of Residence: ...........................

After you must have followed the instructions in the sheet, your Yahoo! account will not be interrupted and will continue as normal. Thank you for your usual co-operation. We apologize for any inconvenience.

Yahoo! Customer Care

Case number: [hidden in purpose]
Property: Account Security
Contact date: 04-01-2010
I am uneasy because it's asking for a password. Could someone please confirm the legitimacy of that notice?