In late July the certificate used by the Single Sign On (sso.bris.ac.uk) will be updated. Normal users will not be affected by this change.
If you are administrator of a local system not managed by IT Services that uses SSO then you will need to ensure your system has appropriate root certificates installed or your service may be disrupted.
https://www.quovadisglobal.com/QVRepository/DownloadRootsAndCRL/QuoVadisRootCA2G3-SHA256-PEM.aspx
Authentication (Single Sign On)
July 26, 2018 2:38PM - 2:38PM BST
August 17, 2018 11:19AM BST
[Update] Changes have been completed.
August 17, 2018 11:20AM BST
[Update] Any service needing the new certificate root can obtain this from the link above.