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4. Biometric & Behavioral Interactions

Constant Scroll Speed

Detection approach

Scroll velocity is perfectly constant. Human scrolling exhibits acceleration curves, deceleration, and micro-corrections. A near-zero variance indicates scripted scroll injection.

How this helps detect bots

This signal is assessed with other independent session, browser, and network evidence. A single anomaly is a lead, not a verdict; corroborating anomalies make automated traffic more likely.

Legitimate traffic to consider

Users utilizing the keyboard spacebar, page-down keys, or middle-mouse-button auto-scroll.

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