I had never heard of quantum hacking, so went looking for more information.  A !wiki search turned up <a href="http:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quantum_key_distribution#Quantum_Hacking" rel="nofollow">http:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quantum_key_distribution#Quantu...</a> .  Do you know of any better &#x2F; more comprehensive, layperson-accessible discussion?