Segment change history: SSO Login Issues with the Segment App

Some customers could not log in to the Segment app via SSO, affecting Web Interface (US). Segment marked the incident major; it ran from 2026-09-10 14:28 UTC to 2026-09-10 15:39 UTC, lasting 1 h 11 min. Segment reported mitigation and fully restored SSO login but did not disclose the root cause.