<http://schema.org/description>
"Microsoft today announced it has added optional multi-factor verification to Windows Azure Active Directory identities, allowing enterprises to secure employee, partner, and customer ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/microsoft/2013/06/12/microsoft-beefs-up-windows-azure-with-optional-multi-factor-verification-via-mobile-app-phone-call-or-sms/?awesm=tnw.to_h0flA>