Sentinel

Sentinel Exam Monitor

A live, browser-based proctoring sandbox. Once you begin, the session locks into fullscreen and a multi-layer sensor grid watches for suspicious mouse, keyboard, and focus behaviour — including hidden apps and AI assistants running alongside the test.

🖱️

Mouse Behaviour Scanner

Tracks every click, cursor-shape shift, viewport exit, and erratic trajectory.

⌨️

Keystroke Guard

Flags restricted keys (B, F1–F12), clipboard shortcuts, and print-screen.

👁

Focus & Visibility Sentinel

Detects tab switches, window blur, and fullscreen escape attempts instantly.

🧠

Hidden-App Heuristic Engine

Correlates focus loss + keyboard activity to infer concealed AI or helper apps.

🔒

Fullscreen Lockdown

Forces the test into fullscreen and actively blocks escape via Esc or F11.

⚠️ Demo Notice: This is a demonstration of client-side proctoring behaviour. Signals are observed in the browser only — no data leaves your machine. Each detected action flashes as a coloured violation popup on the right and feeds the live Suspicion Score.

Press F11 or click outside to test the lockdown. The proctor will re-engage fullscreen automatically.