Opinion | Should We Fear Bitcoin, or Celebrate It?

Readers discuss the pros and cons of cybercurrencies. Also: R. Kelly's conviction; a new look for the American flag.

How Do We Green Cryptocurrency?

Andrew Ross Sorkin and the DealBook team explored the environmental impact of digital currency and efforts to make it more sustainable.

How Do We Green Cryptocurrency?

Andrew Ross Sorkin and the DealBook team explored the environmental impact of digital currency and efforts to make it more sustainable.

China Cracks Down Harder on Cryptocurrency With New Ban

The clampdown comes as China’s central bank has been testing its own digital currency. The price of Bitcoin dropped on the news.

Regulators Racing Toward First Major Rules on Cryptocurrency

Concerned about the potential for a digital-era bank run, the Treasury Department is working on an oversight framework for the fast-growing sector.

Opinion | How Bitcoin Can Immunize America From Cancel Culture

The confluence of tech and finance has produced a nascent soft social credit system. Digital currency may be the only way out.

Opinion | Bitcoin Cosplay Is Getting Real

The biggest worry about Bitcoin is that politicians will start taking it seriously.

County I.T. Supervisor Mined Bitcoin at the Office, Prosecutors Say

Christopher Naples is accused of hiding 46 devices used for mining cryptocurrency in Suffolk County offices, costing the county thousands of dollars in electricity.

El Salvador’s Adoption of Bitcoin Is Off to a Rocky Start

Experts had raised concerns about making the digital token an official currency and the rapid execution of new technology on a national scale.

In Global First, El Salvador Adopts Bitcoin as Currency

President Nayib Bukele has promoted the cryptocurrency as a path to financial freedom, but economic experts and many Salvadorans worry the move brings great risks.

The Strange Tale of the Freedom Phone, a Smartphone for Conservatives

A 22-year-old Bitcoin millionaire wants Republicans to ditch their iPhones for a low-end handset that he hopes to turn into a political tool.

Crypto Banking and Decentralized Finance, Explained

The revolution in digital money is now moving into banking, as cryptocurrency starts to reshape the way people borrow and save.

Opinion | The Way the Senate Melted Down Over Crypto Is Very Revealing

It almost derailed the bipartisan infrastructure bill’s passage.

Crypto’s Top V.C. Is Playing the Long Game

Katie Haun, a co-chair of Andreessen Horowitz’s new $2.2 billion crypto fund, is betting that the blockchain will be as big as the internet.

The Internet Eats Up Less Energy Than You Might Think

New research by two leading scientists says some dire warnings of environmental damage from technology are overstated.

No End to Whiplash in Meme Stocks, Crypto and More

With the pandemic starting to ease in the United States, many had expected a year of wild investments to slow. It hasn’t. Yet.

Airlines Face a Bailout Backlash

They, and other companies that took pandemic rescue money, face new demands in return for their rescues.

Private Equity’s Biggest Tax Tactics

How a powerful industry conquered the U.S. tax system.

Opinion | The Brutal Truth About Bitcoin

Its value is volatile. Its users aren't as anonymous as they think. It might be a threat to the environment. And it could be exacerbating inequality.

Bitcoin and Encryption: A Race Between Criminals and the F.B.I.

The F.B.I. scored two major victories, recovering a Bitcoin ransom and tricking lawbreakers with an encryption app. But criminals may still have the upper hand.