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Protego - AI-Powered Real-Time Scam Detection

Protect yourself from scams across emails, URLs, and messaging apps with AI-powered real-time monitoring. Protego runs quietly in your system tray, analyzing threats before they reach you.

Key Features

  • Reka AI Screen Monitoring - Analyzes your entire screen with vision AI to detect scams in Instagram DMs, iMessage, WhatsApp, etc.
  • URLScan.io Integration - Real VM-based URL analysis with malware/phishing detection
  • Gmail Integration - OAuth-based email scanning with brand impersonation detection
  • Automatic URL Scanning - Monitors clipboard and active windows
  • URL Caching - Instant results for previously scanned URLs
  • Modern Dashboard - Clean, glass-effect UI with real-time stats and history
  • Global Shortcuts - Cmd+Shift+C (toggle UI), Cmd+Shift+S (scan screen)

Quick Start

1. Install

npm install

2. Configure API Keys

cp .env.example .env

Edit .env:

# Required
URLSCAN_API_KEY=your_urlscan_api_key

# Optional (for AI screen monitoring)
REKA_API_KEY=your_reka_api_key

# Optional (for LinkedIn verification in Gmail)
BRIGHTDATA_API_TOKEN=your_brightdata_token
BRIGHTDATA_LINKEDIN_DATASET_ID=gd_lxxxxxxxxxxxxxxxxx

# Optional (for Gmail integration)
GOOGLE_CLIENT_ID=your_google_client_id
GOOGLE_CLIENT_SECRET=your_google_client_secret

Get API Keys:

🔑 BrightData LinkedIn Setup (for Gmail identity verification):

  1. Sign up at https://brightdata.com
  2. Go to Dashboard → Datasets
  3. Find or create a LinkedIn dataset
  4. Copy the dataset ID (format: gd_lxxxxxxxxxxxxxxxxx)
  5. Add both BRIGHTDATA_API_TOKEN and BRIGHTDATA_LINKEDIN_DATASET_ID to .env

See LINKEDIN_GMAIL_INTEGRATION.md for detailed setup guide.

3. Run

npm start

Press Cmd/Ctrl+Shift+C to toggle the dashboard.

How It Works

Protection Layers

  1. URL Detection

    • Automatically scans URLs from clipboard
    • Monitors active browser tabs
    • Manual scanning from dashboard

  2. Multi-Stage Analysis

    • URLScan.io: VM sandbox analysis with screenshot capture
    • Bright Data: WHOIS, domain age, phishing indicators
    • LinkedIn Verification: Cross-checks email sender identity (Gmail only)
    • Risk Scoring: Combines signals into 0-100 risk score
    • Smart Caching: Instantly shows cached results for known URLs

  3. Real-Time Alerts

    • System notifications for threats
    • Top-right dropdown with risk details
    • Persistent scan history

Reka AI Screen Monitoring

The standout feature - analyzes your entire screen with vision AI:

Two Modes:

  • Manual Mode: Press Cmd+Shift+S to scan current screen
  • Auto-Scan Mode: Automatically scans every 10 seconds

Detects:

  • Phishing attempts in messages
  • Urgency tactics and emotional manipulation
  • Suspicious payment requests
  • Brand impersonation
  • Gift card scams

Safe Scanning:

  • Notifications for both threats AND safe scans
  • Risk scores logged to history
  • Works across ANY app (Instagram, WhatsApp, iMessage, Telegram, etc.)

Gmail Integration with LinkedIn Verification

  1. Click "Connect Gmail" in dashboard
  2. Approve OAuth (read-only access)
  3. App scans recent emails for:
    • LinkedIn Identity Verification - Cross-checks sender name with LinkedIn profile
    • Brand impersonation (paypa1.com, g00gle.com)
    • Email domain mismatch (claims to be from Google but uses gmail.com)
    • Typosquatting
    • Suspicious urgency language
    • Young domain names
    • Known phishing patterns

NEW: LinkedIn Verification 🔥

  • When someone emails you as "John Doe john@company.com", Protego:
    1. Searches LinkedIn for "John Doe"
    2. Finds their real company/email
    3. Flags if email doesn't match LinkedIn profile
    4. Detects fake personas and impersonators

Requires BrightData LinkedIn API (see setup below)

Dashboard

Tabs

Overview

  • Real-time protection status
  • Quick stats (threats blocked, total scans)
  • Gmail connection status
  • Recent scan results

History

  • Complete scan timeline with timestamps
  • Risk scores and threat details
  • Filter by risk level
  • Export to CSV

Settings

  • Toggle URL scanning
  • Toggle Gmail monitoring
  • Configure Reka AI (Manual/Auto-Scan)
  • Adjust alert thresholds
  • Sound and notification preferences

Risk Scoring

High Risk (70-100)

  • Flagged by URLScan.io as malicious
  • Domain created < 7 days ago
  • Multiple phishing indicators
  • Known credential harvesting

Medium Risk (40-69)

  • Young domains (< 30 days)
  • Suspicious patterns detected
  • Urgency language
  • Brand impersonation attempts

Low Risk (0-39)

  • Established domains
  • No suspicious indicators
  • Clean URLScan.io results
  • Cached safe results

Architecture

src/
├── electron/
│   ├── main.js              # Main process orchestration
│   ├── control.html/js      # Dashboard UI
│   ├── overlay.html/js      # Alert notifications
│   └── preload.js           # IPC bridge
├── core/
│   ├── reka-screen-monitor.js   # AI screen monitoring
│   ├── reka-vision.js           # Reka AI vision service
│   ├── clipboard-monitor.js     # Auto-detect clipboard URLs
│   ├── scan-queue.js            # Rate-limited URLScan.io queue
│   ├── scan-history.js          # Persistent scan tracking
│   ├── url-filter.js            # Whitelist/blacklist system
│   ├── scraper.js               # URLScan + Bright Data aggregation
│   └── scorer.js                # Multi-signal risk scoring
└── infra/
    ├── sandbox.js               # URLScan.io client
    ├── brightdata.js            # Bright Data API client
    ├── linkedin-verifier.js     # LinkedIn API wrapper
    ├── email-verifier.js        # Email authenticity checker
    └── person-verifier.js       # Gmail sender identity verification

Smart Features

URL Caching

  • Cached results show instantly with "Cached" badge
  • 1-hour cache lifetime (configurable)
  • Prevents redundant API calls
  • Full scan history maintained

Crash Prevention

  • Invalid URLs handled gracefully
  • Timeout protection (35s for URLScan, 20s for analysis pipeline)
  • Memory monitoring with auto-cleanup
  • Error fallbacks with safe defaults

Smart Filtering

  • 60+ whitelisted safe domains (google.com, github.com, etc.)
  • Automatically skips known-safe sites
  • Always scans shortened URLs and login pages
  • Custom whitelist/blacklist support

Security & Privacy

  • Zero data collection - Everything runs locally
  • No screenshot storage - AI analysis happens in real-time
  • OAuth 2.0 - Standard Google authentication
  • Encrypted tokens - Gmail credentials stored securely
  • Optional monitoring - All features can be disabled
  • Sandboxed analysis - URLScan.io runs in isolated VMs

Building

npm run build

Debugging

  • Main process logs: Terminal output
  • Renderer logs: DevTools (Cmd+Option+I)
  • Look for [ScamShield], [RekaScreen], [Gmail] prefixes

Troubleshooting

Reka AI not working

  • Check REKA_API_KEY in .env
  • Restart app after adding key
  • Enable in Settings > Reka AI Vision Mode

URLScan.io timeout

  • Normal: 2-3 minutes per scan
  • Check API key validity
  • Verify rate limits not exceeded

Gmail connection failed

  • Enable Gmail API in Google Cloud Console
  • Verify OAuth credentials
  • Check redirect URI: http://127.0.0.1:42862/oauth2callback

LinkedIn verification not working

  • Check BRIGHTDATA_API_TOKEN and BRIGHTDATA_LINKEDIN_DATASET_ID in .env
  • Restart app after adding credentials
  • LinkedIn verification runs automatically when Gmail is connected
  • Check console logs for [Gmail] LinkedIn verification for...

BrightData costs too much?

  • LinkedIn verification is optional - remove API token to disable
  • App works without LinkedIn (uses keyword + domain checks only)
  • Consider caching results to reduce API calls

What's Real vs Mock

Production-Ready:

  • URLScan.io VM sandbox analysis ✅
  • Reka AI vision screen monitoring ✅
  • Bright Data threat intelligence ✅
  • LinkedIn identity verification ✅ (NEW!)
  • Gmail OAuth integration ✅
  • URL caching system ✅
  • Clipboard & screen monitoring ✅
  • Risk scoring & alerts ✅

Mock (Future):

  • Fetch.ai agent analysis
  • Deepgram audio transcription

Tech Stack

  • Electron - Desktop framework
  • URLScan.io - URL sandbox analysis
  • Reka AI - Vision AI for screen monitoring
  • Bright Data - WHOIS & threat intelligence
  • Google APIs - Gmail integration
  • Tesseract.js - OCR for screen URLs

Credits

Built for CalHacks 2025.

License

MIT

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