Browser fingerprinting is a technique used to uniquely identify website visitors by collecting details about their browsers, such as type, screen resolution, and installed plugins, to create a unique identifier. This method helps recognize legitimate users and combat issues like fraud and malicious activities. The article provides a step-by-step guide on integrating browser fingerprinting into an Angular application using Fingerprint, a device intelligence platform, covering both frontend and backend configurations. It demonstrates setting up a starter project with an Angular frontend and a Node.js backend, using SQLite for database management. The tutorial includes instructions for implementing additional verification when users log in from new browsers, enhancing security through server-side validations using the Fingerprint server SDK. Browser fingerprinting is highlighted as more reliable than other identification methods like session tracking, cookies, and IP tracking, due to its resistance to incognito mode and its ability to perform additional security checks. The integration aims to protect applications from bots and fraud while maintaining a secure and seamless user experience.