Outage in Duo Security

All Deployments: Some Android Devices Erroneously being flagged as Tampered during Auth

Resolved Major
August 23, 2023 - Started about 2 years ago - Lasted about 1 hour
Official incident page

Incident Report

We have identified an issue that is causing some users on Android devices to be incorrectly flagged as Tampered during the authentication process, and are working on implementing a solution as soon as possible. As a workaround, you can use a Policy to create an exception for users that are confirmed to not be running Tampered devices.
Components affected
Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Admin Panel Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service Duo Security Core Authentication Service

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Latest Updates ( sorted recent to last )
RESOLVED about 2 years ago - at 08/23/2023 07:17PM

The issue causing some users on Android devices to be incorrectly flagged as Tampered during the authentication process has been fully resolved. All authentications are working as expected.

We will be posting a root-cause analysis (RCA) here once our engineering team has finished its thorough investigation of the issue.

Please check back or subscribe to be notified when the RCA is posted.

MONITORING about 2 years ago - at 08/23/2023 07:01PM

A fix has been implemented for the Android device authentications erroneously being flagged as Tampered and we are monitoring the results.
Please check back here or subscribe to updates for any changes.

IDENTIFIED about 2 years ago - at 08/23/2023 06:08PM

We have identified an issue that is causing some users on Android devices to be incorrectly flagged as Tampered during the authentication process, and are working on implementing a solution as soon as possible. As a workaround, you can use a Policy to create an exception for users that are confirmed to not be running Tampered devices.

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