Today's Close-Up S2018E05 - $530 Million Gone: Reality Check for Cryptocurrencies

On January 26th, someone hacked a major digital currency exchange in Japan and made off with the equivalent of 530 million US dollars of a cryptocurrency called NEM. Authorities are trying to find out who was responsible and how they got away with it. We consult hackers and other experts for their insight on the matter, and ask them just how secure the world of cryptocurrencies is.