More details emerge as a legal battle over the extradition of Meng Wanzhou continues in Canada.
How social media is preparing for US election chaos
Social media companies are making plans in case of unrest after election day.
Climate change: You've got cheap data, how about cheap power too?
The iPhone transformed mobile phones in just 10 years. Could green energy see a similar revolution?
Kanye West, Kim Kardashian and her dad: Should we make holograms of the dead?
The hip-hop artist gave his wife a hologram of her dead father. How did he do it – and is it ethical?
Chip wars: The US v China
Chips that power nearly all electronic devices are at the heart of the battle for global dominance.
Coronavirus: Is virtual reality tourism about to take off?
Tourism boards, hotels and destinations are turning to virtual reality to woo potential visitors.
Marriott Hotels fined £18.4m for data breach that hit millions
Up to 339 million people may have been hit in a cyber-attack on a chain later bought by Marriott.
Biden campaign fury at blocked Facebook ads
Both Biden and Trump campaigns say political ads have been wrongly blocked from the social network.