When cash is your enemy

Researchers have known for years that parting from cash can be a psychologically painful experience for many people—much more so than spending money with a credit or debit card. The emotional discomfort is significant enough ...

Q&A: What is bitcoin?

Bitcoin has carved out a name for itself as the world's most popular cryptocurrency since arriving on the scene more than ten years ago.

New material holds promise for more secure computing

As computers advance, encryption methods currently used to keep everything from financial transactions to military secrets secure might soon be useless, technology experts warn. Reporting today in the journal Nature, a team ...

Bitcoin's central appeal could also be its biggest weakness

Bitcoin reached a huge new peak in value in June 2017, when one unit of the virtual currency was worth US$2,851 (£2,208), up from around US$600 just a year earlier. More than 10m people worldwide are now thought to own bitcoin ...

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