A commercial quantum encryption system has been fully hacked for the first time.
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References
Xu, F., Qi, B. & Lo, H.-K. Preprint at http://arxiv.org/abs/1005.2376v1 (2010).
Zhao, Y., Fung, C.-H. F., Qi, B., Chen, C., & Lo, H.-K. Phys. Rev. A 78, 042333 (2008).
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Merali, Z. Quantum crack in cryptographic armour. Nature (2010). https://doi.org/10.1038/news.2010.256
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DOI: https://doi.org/10.1038/news.2010.256