![A person putting together a cryptocurrency mining rig.](https://cdn.technologyreview.com/i/images/gettyimages-953651634-web.jpg?sw=285&cx=0&cy=0&cw=3000&ch=1688)
Blockchain
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.
Blockchain
Coronavirus is forcing fans of Bitcoin to realize it’s not a “safe haven” after all
The latest economic downturn has exposed the 10-year-old cryptocurrency as just another financial asset. For now.
![A physical representation of a bitcoin rests on a wallet that also contains a Visa card and paper banknotes from several countries.](https://cdn.technologyreview.com/i/images/aleksi-raisa-m4dmyeu9etc-unsplashweb.jpg?sw=280&cx=0&cy=0&cw=3000&ch=1688)
Blockchain
Three things central bankers can learn from Bitcoin
In a recent panel discussion, experts highlighted some practical lessons from the original cryptocurrency.
![The front of the US Federal Reserve building in Washington, DC](https://cdn.technologyreview.com/i/images/ap19351605021666web_1.jpg?sw=280&cx=0&cy=0&cw=2996&ch=1685)
Blockchain
No, coronavirus is not a good argument for quitting cash
Though it’s theoretically possible, there is no evidence that physical money—or any inanimate surface, for that matter—helps the virus spread.
![Chinese and American paper currency](https://cdn.technologyreview.com/i/images/sa-xbbkrbrkp88-unsplashweb.jpg?sw=280&cx=0&cy=0&cw=3000&ch=1688)
Blockchain
This is how North Korea uses cutting-edge crypto money laundering to steal millions
Hackers working for Kim Jong-un have become experts at covering their tracks on the Bitcoin blockchain.
![North Korean students use computers near portraits of the country's later leaders Kim Il Sung, left, and his son Kim Jong Il at the Kim Chaek University of Technology in Pyongyang, North Korea.](https://cdn.technologyreview.com/i/images/ap494082739730-web.jpg?sw=280&cx=0&cy=0&cw=3000&ch=1688)
What matters in Blockchain right now?
Latest from Blockchain
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