An exclusive interview with Bill Ready, boss of social media platform Pinterest.
The move, which is aimed to protect supplies of technology, could raise tensions between the EU and China.
Some are worried that the rapid rise in the value of AI tech companies may be a bubble waiting to burst.
Prepare to switch to offline systems in the event of a cyber-attack, firms are being advised.
Vodafone said its Monday outage, which knocked broadband and mobile data users offline for several hours, was caused by a “non-malicious software issue”.
The UK has also frozen assets linked to the alleged scammers, including a £100m London office building.
CEO Sam Altman says upcoming versions of the popular chatbot would enable it to behave in a more human-like way – “but only if you want it”.