🛡️ Sentinel MK2

Sentinel MK2 is a next-gen browser extension for real-time web security, built with AI-powered analysis and visual indicators to enhance your online safety—developed during HackHazards 25, where it ranked in the Top 100 projects out of 8000+ submissions from 17500+ participants, representing 25+ countries and 30+ universities.

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🌐 Live Project

• 🔗 Website: sentinel-cyber.vercel.app
• 🎥 Demo Video: Watch on YouTube
• 📄 Privacy Policy: View Here

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🌟 Key Features

• 🔒 Real-Time Security Scoring: Instantly assess the security of any website you visit
• 🔐 SSL/TLS Certificate Insights: View detailed certificate verification for HTTPS connections
• 🤖 AI Security Chat: Ask AI-powered questions about the current site’s safety using the Groq API
• 🧭 Link Security Markers: Get visual cues on link safety before clicking
• 🖥️ Screen Content Analysis (via Screenpipe): Detect potential phishing or risky content on-screen

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🧰 Tech Stack

• Chrome Extension APIs — For deep browser integration
• Groq API (LLaMA 3 70B) — Powers the AI assistant
• Screenpipe — Enables real-time screen analysis
• JavaScript + Webpack — Core logic and bundling

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⚙️ Installation Guide

🔗 Browser Extension Setup

1. Download:

   • Grab the unpacked extension from Download Page or use the dist folder.

2. Load in Chrome:

   • Visit chrome://extensions/
   • Enable Developer Mode
   • Click Load unpacked and select the extension folder

3. API Key Setup:

   • Get your free Groq API key from Groq Console
   • Open the extension → Settings → Paste your API key

4. ✅ You’re all set! The extension is now active.

🖥️ Screenpipe Setup (Optional)

1. Open PowerShell or CMD

2. Run:

   iwr get.screenpi.pe/cli.ps1 | iex
   screenpipe.exe

3. Keep this running in the background when using screen analysis features

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🎯 Hackathon Purpose

Sentinel MK2 was built for HackHazards 25, a cybersecurity-focused hackathon. The goal:

Empower users to proactively identify and understand security threats through a browser-native, AI-integrated tool.

Project Highlights:

• Contextual AI explanations for non-technical users
• Proactive phishing and fake-site detection
• Real-time, privacy-first assessments

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🤝 Contributing

Want to help improve Sentinel MK2? Follow these steps:

# Fork & clone the repo
git checkout -b feature-name
# Make your changes
git commit -m "Describe your changes"
git push origin feature-name
# Open a pull request!

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📄 License

MIT License – see LICENSE

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Created for HackHazards 25 – A project by Amaan Syed
🏅 Top 100 Project | Among 8000+ projects | 17500+ participants

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