Behavioral Biometrics

Detect bots and fraud through typing and mouse patterns.

Overview

Behavioral biometrics analyze:

• Keystroke dynamics - Typing patterns
• Mouse movement - Cursor behavior
• Touch patterns - Mobile gestures
• Form timing - How long to fill forms

Collecting Behavioral Data

JavaScript

const simplr = new SimplrFraud({
  collectBiometrics: true,
  autoStart: true
});

// Track specific form fields
const emailProps = simplr.trackInput('email');
emailInput.addEventListener('input', emailProps.onInput);

// Collect on submit
const signals = await simplr.collect();

React

const { handleSubmit, trackInput } = useSimplrForm();

<form onSubmit={handleSubmit(async (signals) => {
  // signals.behavior contains biometric data
})}>
  <input {...trackInput('email')} />
</form>

Keystroke Analysis

Metric	Human	Bot
Typing speed	3-8 chars/sec	>15 chars/sec
Delay variation	High	Zero
Corrections	Some	None
Hold time	Variable	Uniform

Mouse Analysis

Metric	Human	Bot
Movement	Curved	Straight lines
Speed	Variable	Constant
Direction changes	Many	Few
Acceleration	Variable	Uniform

Risk Indicators

Signal	Risk
No mouse movement	May be mobile or bot
Perfect typing	Likely automated
Instant form fill	Copy-paste or autofill
Zero corrections	Suspicious

Best Practices

1. Require minimum interaction - Block instant submissions
2. Combine with device data - Biometrics alone aren't definitive
3. Consider accessibility - Screen readers, voice input
4. Allow autofill - Legitimate users use it