DATE: Beginning at approx 21:00 PM UTC, October 31st, 2016.
IMPACT: Customers who have configured SAML integration as part of their dashboard 'Login Security' settings are currently unable to login to the Umbrella dashboard. Users may receive the error:
http://login.opendns.com/sso is not a valid audience for this Response
UPDATES: 11:38 AM UTC, November 1st, 2016..
This issue is now resolved and the Umbrella dashboard is available again for SAML users.