Beating the dark side of quantum computing

A future quantum computer will be able to carry out calculations billions of times faster than even today’s most powerful machines by exploit the fact that the tiniest particles, molecules, atoms and subatomic particles can exist in more than one state simultaneously. Scientists and engineers are looking forward to working with such high-power machines but so too are cyber-criminals who will be able to exploit this power in cracking passwords and decrypting secret messages much faster than they can now.

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