As quantum computing advances, it poses a significant challenge to current encryption methods. Traditional cryptographic algorithms like RSA, ECC, and AES-256 rely on mathematical problems that classical computers struggle to solve efficiently. However, quantum computers, leveraging principles of superposition and entanglement, have the potential to break these encryption standards, necessitating the development of post-quantum cryptography (PQC). The Quantum Threat to Cybersecurity Breaking Public-Key Cryptography: Algorithms like RSA and ECC depend on the difficulty of factoring large prime numbers or solving discrete logarithm problems. Shor’s algorithm, designed for quantum computers, can solve these problems exponentially faster, rendering current encryption obsolete. Impact on Secure Communications: Quantum attacks could compromise HTTPS, VPNs, and encrypted messaging, putting sensitive financial, governmental, and personal data at risk. The Need for Post-Quantum Solutions...