Tricky Store OSS correctly implement Strong Integrity Level 3, but an issue has been observed specifically on Android 11. While system biometrics remain functional, Play Store fingerprint authentication fails due to invalidation of the app's security keys. In the Revolut app, face verification consistently fails because the secure link between the app’s biometric process and the trusted environment is disrupted. This behavior is isolated to Android 11 and affects apps that require strict biometric and integrity bindings
Tricky Store OSS correctly implement Strong Integrity Level 3, but an issue has been observed specifically on Android 11. While system biometrics remain functional, Play Store fingerprint authentication fails due to invalidation of the app's security keys. In the Revolut app, face verification consistently fails because the secure link between the app’s biometric process and the trusted environment is disrupted. This behavior is isolated to Android 11 and affects apps that require strict biometric and integrity bindings