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The "Ransomware Shield Detection and Prevention System" is a Flask-based solution designed to combat ransomware by securing data with a multi-layered encryption approach, integrating AES-256, RSA, and simpler ciphers like XOR and Vigenère. It addresses the rising ransomware threat that locks data and demands payment, often bypassing traditional defenses. The study investigates whether this encryption framework can prevent data loss and detect unauthorized encryption attempts. Using a web application, it encrypts data and explores adding real-time monitoring for ransomware behavior. While effective at securing data, the system lacks active detection, highlighting a need for enhanced prevention features to fully counter ransomware.