🛡️ Phishing Detector Extension

Detect Suspicious Websites Before They Steal Your Data

A lightweight cybersecurity browser extension that analyzes websites in real time and warns users about potential phishing threats.

📌 Project Overview

Phishing attacks are among the most common cyber threats on the internet. Attackers create fraudulent websites that imitate legitimate services to steal passwords, banking information, and personal data.

The Phishing Detector Extension acts as an additional security layer within the browser by analyzing websites and notifying users when suspicious patterns are detected.

This project demonstrates practical cybersecurity implementation using browser extension technologies and real-time website analysis.

🎯 Problem Statement

Millions of users unknowingly enter sensitive information into fake websites every year.

Common Challenges

• Fake login pages that imitate trusted brands
• Suspicious URLs designed to look legitimate
• Lack of user awareness regarding phishing attempts
• Credential theft and financial fraud

Solution

The extension continuously monitors visited websites and performs phishing detection checks to help users identify potentially dangerous pages before interacting with them.

✨ Features

🔍 Real-Time URL Analysis

Analyzes websites as users browse and checks for phishing indicators.

⚠️ Instant Threat Alerts

Displays warnings whenever a website appears suspicious or potentially malicious.

🚀 Lightweight Performance

Runs efficiently in the background without affecting browsing speed.

🧩 Seamless Browser Integration

Works directly within the browser environment for a smooth user experience.

🔒 Security Focused

Designed specifically to improve online safety and reduce phishing risks.

🏗️ System Workflow

User Opens Website
        │
        ▼
Extension Captures URL
        │
        ▼
Threat Detection Engine
        │
        ▼
Risk Evaluation
        │
 ┌──────┴──────┐
 │             │
 ▼             ▼
Safe      Suspicious
 │             │
 ▼             ▼
Continue   Warning Alert
Browsing   Displayed

🛠️ Technology Stack

📂 Project Structure

phishing-detector-extension/
│
├── manifest.json
├── popup.html
├── popup.js
├── background.js
├── content.js
├── styles/
│   └── style.css
├── assets/
│   └── icons
└── README.md

💡 Key Learnings

During the development of this project:

• Learned browser extension architecture
• Worked with Chrome Extension APIs
• Implemented website analysis logic
• Explored cybersecurity threat detection concepts
• Improved understanding of browser security mechanisms

📈 Impact

This extension helps users:

• Detect suspicious websites
• Avoid credential theft
• Improve browsing safety
• Increase cybersecurity awareness
• Make informed decisions online

🚀 Future Enhancements

AI-Based Detection

Integrate machine learning models to improve phishing detection accuracy.

Reputation Database

Connect with threat intelligence feeds and URL reputation services.

Advanced Threat Scoring

Provide detailed risk scores and threat explanations.

Multi-Browser Support

Support:

• Google Chrome
• Microsoft Edge
• Mozilla Firefox
• Brave Browser

Threat Reporting

Allow users to report suspicious websites and contribute to a community-driven database.

📊 Project Highlights

🔗 Links

GitHub Repository

👉 Repository:
https://github.com/DHAMI-HARSH/phishing-detector-extension

👨‍💻 Author

Harsh Dhami and Harit Vashishtha

Full Stack Developer • Cybersecurity Enthusiast • Cloud & DevOps Learner

Building practical software solutions focused on security, scalability, and real-world impact.

"Cybersecurity is not just about protecting systems—it's about protecting people."