Phishwatch

🛡️ PhishWatch - Gmail Phishing Checker Extension

A lightweight Google Chrome extension that protects users from suspicious emails directly inside Gmail — giving real-time insight into potential phishing risks using AI.

✨ Highlights

🔍 Scans emails with Groq LLM for phishing patterns in real time
🧠 Smart logic filters out false positives using severity scores
📬 Injects caution banners seamlessly above the email body
🎨 Features 6 unique background themes for the "Scan" button
🛡️ Focused on user security and zero data retention
❓ How Does It Work?
This extension intercepts Gmail emails in the DOM and sends the full body content, including the sender and subject, to an AI-powered phishing detection backend powered by Groq’s LLM. The backend returns either true or false, along with a list of suspicious elements if phishing is detected. If phishing is detected the extension will:

Insert a caution banner at the top of the email
Highlight critical suspicious indicators with caution lines
Base all decisions on a precise scoring model embedded in the prompt

🔧 How to Use PhishWatch in Gmail:
- Download the extension from the Chrome Web Store
- Open any email in your Gmail inbox
- Click the puzzle piece icon 🧩 in the top-right corner of Chrome
- Select “PhishWatch” from the dropdown list
- (Optional) Click the 📌 pin icon to add it to your toolbar for quick access
- Click the Scan button to check for phishing threats
✅ Stay alert and protect your inbox with confidence!

🔐 User Data & Security: This extension is designed with security and privacy at its core. Here's how your data is handled:

🚫 No data storage: Emails are never saved, logged, or stored by the extension or its backend
📡 Secure transmission: All communication with the Groq LLM backend is encrypted using HTTPS
🎯 Email analysis is local to Gmail context: Only the content of the currently viewed email is processed
🕵️ No personal information is extracted: The extension analyzes only email text for suspicious patterns
✅ No permissions beyond Gmail DOM access: The extension does not request broad data permissions
🔘 Email content is ONLY read into the backend once you click on the “Scan” button

🎨 Customize with the Options Page: Every time you detect a phishing email, you earn a single Scamite — a small reward for keeping your inbox safe. You can spend these Scamites on the Options page, where you’ll find six unique background themes. To access the Options page:

Right-click the extension icon in your Chrome toolbar
Select “Options” from the dropdown menu

📮 Contact & Security Reporting If you discover any vulnerabilities, accuracy concerns, or have suggestions to improve this application, please reach out directly at grantklein528@gmail.com