What is a blockchain? Distributed ledger technology underlies cryptocurrencies like bitcoin and could be the future of money, security, and online privacy. But there's also a ton of hype.


China may be just about to launch its digital currency in two cities

Real-world tests of the system are set to begin soon, according to a local news report.

High-rise buildings in Shenzhen, China.

A blockchain expert is accused of helping North Korea’s leaders. But what would they want from him?

The North Korean regime appears to see cryptocurrency as a shortcut to economic development.

North Korean leader Kim Jong-un speaks into a microphone.

Why a digital dollar isn’t coming anytime soon (or so the Fed says)

While central bank digital currencies may address problems in other countries, the US doesn’t have those problems, according to Fed chair Jerome Powell.

US Federal Reserve chairman Jerome Powell
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