BuckeyePass

Due to a certificate authority (CA) change on March 31, 2026, versions older than 4.85.0 of the Duo Mobile app will no longer be supported. Users with unsupported versions will be unable to approve push notifications. However, one-time passcodes generated within the Duo mobile app will still be available to use.

Recommended Action

Update Duo Mobile to the latest version from the App Store or Google Play. This is the preferred and most secure option. Register a secondary device to ensure you have a backup device on your account. See Adding a Device.

Alternative Options

• Use Duo Mobile on another, supported device
• Use a security key (FIDO2/WebAuthn)
• Purchase a hardware token from Tech Hub
• Use SMS passcodes

Android 8 through 10

Duo has created a special Duo Mobile builds for Android 8 through 10 that will allow those older devices to continue using Duo Push after 3/31/26. However, those Android versions remain unsupported by Duo and will not receive new features, further fixes, or app updates. See Duo KB article 2211 for Android APK side-load instructions.

APK Download Links: Android 8 & 9: DuoMobile-4.33.1.apkAndroid 10: DuoMobile-4.57.1.apk

If No Action Is Taken

After March 31, 2026, authentication may fail, preventing access to systems protected by BuckeyePass (Duo).

Need Help?

Self-service at BuckeyePass.osu.edu

Contact the IT Help Desk for assistance with updating your device or setting up an alternative authentication method.

• Phone: 614-688-4357 (HELP)
• Email: ServiceDesk@osu.edu
• Self Service and Chat Support: go.osu.edu/IT