Not really. Microsoft set up a form to regain access to your inbox. I just tried to find it - took me (and I consider myself to be a routined google-hacker) about 5 minutes to find.
I doubt that a normal user would find it (btw: it's here: https://support.live.com/eform.aspx?productKey=wlidvalidation&ct=eformcs&scrx=1).
Now I'm curios what yahoo did to enable users to reclaim their inbox. Any hints or links? - Post a comment if you can help.