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Detects Unicode homoglyphs (lookalike characters) used in phishing attacks. Highlights suspicious Cyrillic/Greek characters. **Protect Yourself from Homoglyph Phishing Attacks** Homoglyph Detector is your shield against sophisticated phishing attacks that use Unicode lookalike characters to deceive users. These "homoglyphs" - visually identical characters from different alphabets - are commonly used by cybercriminals to create fake URLs and content that look legitimate. **🔍 What Are Homoglyphs?** Homoglyphs are characters that look identical but have different Unicode values. For example: - Cyrillic 'а' (U+0430) looks exactly like Latin 'a' (U+0061) - Greek 'ο' (U+03BF) appears identical to Latin 'o' (U+006F) - Cyrillic 'р' (U+0440) mimics Latin 'p' (U+0070) Attackers exploit these similarities to create deceptive domains like "рaypal.com" (using Cyrillic 'р') instead of "paypal.com" (using Latin 'p'). **🛡️ Key Features:** - **Real-time Detection**: Automatically scans web pages as you browse - **Visual Highlights**: Suspicious characters are marked with yellow background and red underline - **Unicode Analysis**: Hover over detected characters to see detailed information including script type and potential lookalikes - **Privacy-First**: All processing happens locally in your browser - no data is sent to external servers - **Zero Performance Impact**: Efficient scanning with debounced processing - **Built-in Testing**: Includes test page generator to verify detection capabilities **🚀 How It Works:** 1. **Automatic Scanning**: The extension continuously monitors web page content 2. **Character Analysis**: Identifies suspicious Unicode characters that could be homoglyphs 3. **Visual Alerts**: Highlights detected characters with clear visual indicators 4. **Detailed Information**: Provides Unicode details and script analysis on hover **💻 Perfect for:** - Online banking and financial services - E-commerce and shopping - Email and messaging platforms - Social media browsing - Professional and educational websites - Any situation where text authenticity matters **🔒 Privacy & Security:** - **No Data Collection**: We don't collect, store, or transmit any personal information - **Local Processing**: All detection happens within your browser - **Minimal Permissions**: Only accesses the current tab and stores your preferences - **Open Source**: Transparent code available for review **⚡ Easy to Use:** - Install and forget - works automatically - Simple toggle to enable/disable detection - Manual scan option for on-demand checking - Clear visual feedback when threats are detected **Technical Details:** - Supports detection of Cyrillic and Greek homoglyphs - Covers the most commonly abused character substitutions - Optimized for performance with minimal memory usage - Compatible with all modern websites and web applications Don't fall victim to sophisticated phishing attacks. Install Homoglyph Detector today and browse the web with confidence, knowing you're protected against Unicode-based deception tactics. **Support & Feedback:** Visit our GitHub repository for documentation, issues, and feature requests: https://github.com/pOH7/homoglyph-detector-extension Stay safe online with Homoglyph Detector - your first line of defense against Unicode phishing attacks!