Brian what was the source of the sign-on? Was it an e-maill with the yahoo signon page embedded into it or were you taken to the fake yahoo page from a link on another page?

To all: never directly go to a signon page from something you receive in e-mail. Never ever, give out personal information (account id, password etc) by keying it in a page embedded in e-mail. Always, go directly to the site itself.

Sorry to hear about your troubles.. you might get yahoo involved to let them know.