28/03/2022 08:57:00 AM (BST)
NHSmail Reference : INC27835884
Microsoft Reference : EX347915
Issue Status: RESTORED
Issue Description: Users opening some website links are incorrectly informed by Safe Links that they are classified as malicious.
Scope of Impact : Impact is specific to users who are served through the affected infrastructure.
Final Update: 28/03/2022 12:29:00 PM – After a period of extended monitoring, Microsoft have confirmed that impact has been remediated. They have identified that a recent configuration change caused Safe Links to perform unexpectedly.
Root cause : A recent configuration change caused Safe Links to perform unexpectedly.
Next steps : Microsoft are reviewing their configuration procedures to find ways to prevent this problem from happening again.