A servicing update of ESET Secure Authentication - Mobile App 4.2.1 has been released.

Users will be receiving the update in a phased manner: only up to 25% of the users will receive the update on the day of the release and we will increase the percentage up to 100% by Monday May 5, 2026.

Changelog

• IMPROVED: EULA replaced with unified Terms of Use, users will be prompted to accept these to continue using the application

• IMPROVED: Updated copyright year to 2026

• ADDED: Support for iOS 26.2.1

• FIXED: Mobile app unavailable on some Android devices (e. g. 32-bit) due to missing runtime identifiers

• FIXED: PIN not submitted after pressing Done on keyboard (Android only)

• FIXED: Allowing access without PIN or biometrics when application opened after a long time (Android only)

• FIXED: Crashes while receiving multiple push notifications (iOS only)

• FIXED: Disappearing push notifications (Android only)

• FIXED: PIN or biometrics sometimes skipped when opening the app via push notification (Android only)

• FIXED: Incorrect PIN label in Dutch localization

• FIXED: Various security and stability fixes

Support resources

ESET provides support through a fully localized app, Online Help guides, Knowledgebase content, chat, email, or phone support.

• Mobile Application | ESET Secure Authentication On-Prem | ESET Online Help

• Device Switch and Backup | ESET Secure Authentication | ESET Online Help