Quantum computing in cyber security: A double-edged sword | Computer Weekly
Briefly

Quantum computing is emerging as a powerful force in 2025, with stocks rising despite skepticism from industry leaders. The technology could significantly impact cyber security, offering both new capabilities and threats. While it can improve security measures through better pattern recognition and anomaly detection, it also poses risks by potentially breaking existing encryption methods like RSA and ECC. As quantum computers gain traction, the challenge lies in navigating the dual nature of their capabilities to enhance security while mitigating risks.
Despite investor scepticism, prominent quantum computing stocks have seen a notable rise at the beginning of 2025, driven by public excitement and potential applications.
Quantum computing brings unprecedented capabilities and threats in cyber security, necessitating caution to leverage advantages while mitigating risks.
Quantum systems leverage qubits allowing multiple calculations simultaneously, which could revolutionize cyber security by enhancing pattern recognition and reducing response times.
Shor's algorithm exemplifies how quantum computing can undermine classical cryptography, particularly RSA encryption, signaling a need for new encryption methods.
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