quantum computing threat

The term **"quantum computing threat"** refers to the potential risk that advances in quantum computing pose to current cryptographic systems and data security. Quantum computers, once sufficiently powerful, could perform calculations that are practically impossible for classical computers—such as efficiently factoring large numbers or solving discrete logarithm problems—which underpin most modern encryption schemes. This capability could allow attackers to break widely used cryptographic algorithms (like RSA and ECC), compromising secure communications, financial transactions, and data privacy. The concept motivates the development of **post-quantum cryptography**, designed to remain secure even in the presence of quantum computing capabilities.