[H] Hotmail?

[DSinc]

What is up with Microsoft Hotmail/Outlook.com?
My long old uname/pw creds no longer work; and I get sent to some page
that requests a 'security code.'  I am clueless how to proceed, but it 
appears that
something will happen on 5/14/14 if I don't do something. Has M$ been 
hacked?
Thanks,
Duncan