What's a Bitcoin? [RzAR0GyQk9z]

Bitcoin is attracting the attention as a wildly-volatile, all-digital currency. How does it work? How are criminals taking advantage of it? How risky an investment is it? In this Bitcoin explainer, WSJ's Jason Bellini has "The Short Answer." Don’t miss a WSJ video, subscribe here: More from the Wall Street Journal: Visit WSJ.com: Visit the WSJ Video Center: On Facebook: On Twitter: On Snapchat: #warum sinkt bitcoin #bitcoin paysafe #wie kaufe ich bitcoins