Ethereum, the most popular cryptocurrency platform, completed its much-anticipated switch to a more energy-efficient infrastructure.

Young people are increasingly at ease consuming culture via digital avatars or made with artificial intelligence. Should the same moral guidelines and laws apply to those works?

The chief executive of the experimental crypto bank Celsius has told employees about an audacious plan to revive the firm, which filed for bankruptcy in July.

Ethereum, the most popular cryptocurrency platform, completed its much-anticipated switch to a more energy-efficient infrastructure.

Many fans think it will. But it might end up creating some new problems.

Prosecutors in Seoul issued an arrest warrant last week for Mr. Kwon on charges of violating South Korea’s financial laws. His cryptocurrencies, Luna and TerraUSD, crashed in May.