28-11-2018 20:16: [Resolved] We have not seen any further instances of problems logging into the system. If you are experiencing any issues please raise a ticket with support.
28-11-2018 19:15: [Monitoring] Our supplier has informed us that they have resolved the issue and we have verified that logins for single sign-on users is now working as expected. We will monitor the situation over the next hour to ensure that this fix is stable.
28-11-2018 17:40: [Update] Our supplier has identified the cause of the outage and are currently working on a fix for the issue. We will update you as soon as we have further information.
28-11-2018 17:22: [Initial report] We are aware of a problem with one of our suppliers that is preventing users from logging in if they are using a Single Sign-On solution. This has no impact on forms users. We are working with our supplier to resolve this problem as a matter of urgency.