Use Case 2.2 Change biometric unlock

Overview

Aspect	Description
Summary	The user enables or disables biometric unlock in the app, confirming with their PIN when enabling biometric unlock.
Goal	Enabling or disabling biometric unlock, whatever the user prefers.
Preconditions	Device supports biometrics
Postconditions	Biometric unlock is enabled OR Biometric unlock is disabled
Triggered by	User selects ‘Unlock with biometric’ in UC9.1 Show app menu.
Additional Documentation	PIN Validation
Possible errors	None
Logical Test Cases	LTC76 User disables biometrics LTC77 Setup biometrics in settings

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Flow

#	Description	Next
1	PRIMARY SCENARIO
1.1	System displays screen ‘Configure Biometrics’ Message: Unlock with Face ID/Fingerprint Input: Enable/disable toggle Actions: Back
1.1a	User enables biometrics	1.2
1.1b	User disables biometrics → Biometrics are disabled
1.1c	User selects Back	End
1.2	Operating system prompts user for biometric authentication
1.2a	User confirms with biometric authentication	1.3
1.2b	User rejects biometric authentication	1.1
1.3	System executes partial flow PF2.4 Confirm a protected action Not cancelable
1.3a	Result: Confirm	1.4
1.3c	Result: Back	1.1
1.4	System displays screen ‘wallet is secured’ Message: Your NL Wallet is secured Actions: Close, To Settings, Help
1.4a	User selects Close	1.1
1.4b	User selects To Settings	Go to: UC9.1 Show app menu
1.4c	User selects Help	Show placeholder ‘under construction’