Touch Dynamics
Definition
The equivalent of mouse dynamics on touchscreen devices: swipe velocity, tap pressure distribution, finger contact area, and lift-off deceleration, used in mobile banking fraud detection.
- Measures
- Swipe velocity, tap pressure, contact area, lift-off deceleration
- Category
- Behavioural biometric
- Platform
- Touchscreen devices
- Application
- Mobile banking fraud detection
Common questions
How is touch dynamics different from keystroke dynamics for authentication?+
Keystroke dynamics captures typing rhythm on a physical or virtual keyboard, while touch dynamics captures the mechanics of finger contact itself, including pressure and swipe motion, which applies even during app navigation that involves no typing at all, making it usable continuously across a mobile session.
Can touch dynamics detect fraud without the user noticing anything different?+
Yes, that is the intended design. The system passively profiles a legitimate user's typical touch behaviour during normal app use and flags sessions that deviate significantly, without requiring any extra step or explicit challenge from the user.
What limits the reliability of touch dynamics as evidence in a fraud case?+
Touch patterns can shift with the user's physical state, device, hand position, or even a cracked screen, so touch dynamics is generally used as one continuous risk signal feeding a broader fraud score rather than as a standalone identifier presented on its own.
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