durning bugbounty tests I decide to try at Microsoft's page.
After a while, I found one bug.
Of course there was a nice contact about the whole case, but
after asking about any response - no contact to this day. :)
So... public ;)
Similar story to one, described few minutes ago about linkedin.com.
* Update @ 11/10.2013 *
Finally I've got an answer about this case, and it should be presented at their page.
In case of any news I will publish here the details.
Enjoy and remember to do only legal things ;)