Phishing Guard Lookalike URL Detector(Luminex)

how the webpage looks
score giver in percentage to determine how malicious a website is
example
example
phishing detected
register page
login page

Inspiration

paypa1.com looks just like PayPal, until it empties your account. One swapped letter fools almost everyone, and phishing sites count on that. We wanted to stop the click before the damage, not warn people after it.

What it does

Phishing Radar is a Chrome extension that spots lookalike URLs in real time. When you land on a fake page, it throws up a warning banner and blocks the page before you can type a single password. We started with PayPal as our first protected brand, and a web platform with user and admin access manages it all.

How we built it

A FastAPI backend checks each URL against protected brands and stores flagged sites in a database. The Chrome extension sends every page you visit to the backend and acts on the verdict. The website is built with HTML, CSS and JavaScript.

Challenges we ran into

This was our first hackathon, and it was online. Wiring the backend, database and extension together meant late-night bugs and plenty of "why isn't this working?" moments. Staying in sync as a team over chat and calls was a challenge of its own.