Will quantum computers disrupt critical infrastructure?
Briefly

Twenty-five years after concerns over the millennium bug, a new threat has emerged: the advent of quantum computing. Unlike classical computers that process binary bits, quantum computers leverage qubits, enabling them to perform multiple calculations simultaneously. This efficiency makes quantum systems capable of solving complex problems, including those that underpin modern encryption algorithms such as RSA. With the potential to crack these algorithms in minutes, the rise of quantum computing threatens the security of our digital infrastructure, impacting areas from finance to communications, necessitating urgent action to safeguard privacy and data integrity.
Quantum computing is radically different from classical computing. Instead of processing binary bits, it uses qubits which can exist in multiple states, enabling powerful computations.
The arrival of quantum computing means that many encryption algorithms that underpin our hyperconnected world will be trivially easy to crack, posing a significant threat.
Read at www.bbc.com
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