This component replaces reCAPTCHA and hCaptcha with a self-contained behavioral analysis engine. When a user interacts with the widget, it captures up to 300 pointer telemetry samples recording position, velocity, angular direction, and acceleration then runs them through a Naive Bayes classifier trained on human vs. bot movement profiles. The result is a probability score. If it crosses the configurable threshold, the user passes silently. No image grids. No audio challenges. No third-party network requests.
Advanced behavioral analysis using entropy, acceleration, and variance
Probabilistic scoring system for human interaction patterns
Hidden field protection against automated submissions
Browser environment consistency checks
Adaptive sensitivity based on interaction quality
Attempt limiting with cooldown handling
Lightweight computational challenge for verification
Secure form submission control
Cryptographic challenge using SHA-256–based computation
Dynamic difficulty adjustment based on interaction confidence
Background processing using Web Workers for smooth performance
Per-session randomized interaction models
Dynamic feature weighting to prevent pattern predictability
Motion depth analysis.
Direction change and interaction flow tracking
Micro-pause detection in user input
Velocity variation and irregular movement detection
Interaction timing distribution analysis
Initial interaction delay measurement
Tab activity and visibility awareness
Window focus and activity tracking
Scroll interaction pattern recognition
Repeated interaction pattern detection
Synthetic interaction signal detection
Linear motion pattern filtering
Environment inspection awareness
Rendering and display consistency checks
Advanced device capability analysis
Audio and graphics context consistency checks
Hardware capability validation
Secure token generation based on interaction data
Short-lived verification tokens with automatic expiration
Token reset on inactivity or context change
In-memory tracking to prevent reuse
Multi-step verification pipeline for reliability
Early filtering of low-quality interactions
Controlled form submission flow enforcement
Prevention of unintended or automated submissions
Runtime integrity validation of core logic
Encapsulated logic to reduce external interference
Adaptive verification flow based on real-time signals
Full-area interaction support (click anywhere to verify)
Visual feedback indicator for verification state
Mobile-friendly unified input handling
Performance-optimized data processing
Sajjadul Kibria
