The latest stories from the Technology section of the BBC News web site.
The chatbot has been used millions of times since its public launch last year.
Tesla invested $1.5bn in the cryptocurrency in early 2021, and briefly accepted it as payment.
The online payments platform is the latest technology firm to cut costs as the global economy weakens.
Proposals are being set out as scandals and tumbling values raise questions about the industry's future.
Washington has been tightening its rules on exports of US technology to China for several years.
Projects aimed at lowering carbon emissions are boosting growth in poorer parts of the country.
The consumption of pornography is widespread among children, the children's commissioner says.
Firms are creating artificial animal fats that they promise will make meat-free products taste better.
The sportswear chain says stored data relating to its customers might be at risk following the attack.
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