Okta incident

SMS delivery issues in China

Minor Resolved View vendor source →

Okta experienced a minor incident on September 18, 2024 affecting okta-emea.com cell 1 and okta.com cell 1 and 1 more component, lasting 357d 17h. The incident has been resolved; the full update timeline is below.

Started
Sep 18, 2024, 02:11 AM UTC
Resolved
Sep 10, 2025, 07:43 PM UTC
Duration
357d 17h
Detected by Pingoru
Sep 18, 2024, 02:11 AM UTC

Affected components

okta-emea.com cell 1okta.com cell 1okta.com cell 2okta.com cell 3okta.com cell 4okta.com cell 6okta.com cell 7okta.com cell 8okta.com cell 9okta.com cell 11

Update timeline

  1. resolved Sep 18, 2024, 02:11 AM UTC

    Okta has received multiple reports of SMS delivery issues affecting users in China. Okta's Engineering team is actively investigating. At this time, we recommend that customers in China use a secondary MFA option if available.

  2. resolved Sep 18, 2024, 02:40 AM UTC

    An issue impacting SMS OTP to end users in China has been resolved. Additional root cause information will be available within 5 Business days.

  3. resolved Sep 25, 2024, 11:21 PM UTC

    Timing: Incident start: September 17, 2024, at 5:00 PM PDT Incident resolved: September 17, 2024 at 7:28 PM PDT Detection: Okta Customers reported that users in China were not receiving their multi-factor authentication (MFA) one-time passwords (OTP) via SMS. Impact: Users in China were unable to receive SMS-based OTPs for MFA during the incident period. Root Cause: One of Okta’s telephony providers implemented an unannounced configuration change, leading to SMS delivery disruption to users in China. Remediation Steps: Okta teams immediately notified our telephony provider of the disruption. The provider was able to identify and reverse the problematic change, restoring SMS service to China.