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- What is the Signal messaging app and how secure is it?Experts say using even such a privacy-focussed platform for national security matters is very unusual.
- Tech LifeNoland Arbaugh has a chip in his brain to translate his thoughts into computer commands.
- Chinese electric carmaker BYD sales beat TeslaThe Shenzhen-based firm says revenue for last year came in at $107bn, boosted by sales of its hybrid vehicles.
- Meta considers charging for ad-free Facebook and Instagram in the UKThe firm is considering asking people to pay to remove ads if they do not want their data to be tracked.
- DNA testing site 23andMe files for bankruptcy protectionThe company said that it will now attempt to sell itself under the supervision of a court.