Four Chinese nationals have been charged in a global hacking campaign aimed at dozens of companies, universities and government agencies in the United States and abroad, the U.S. Justice Department said on Monday.

The Australian antitrust regulator on Thursday kicked off an inquiry into the local units of Amazon.com Inc, eBay Inc and other online markets to ensure fairness in a sector where sales have soared through the coronavirus pandemic. The ACCC will examine the relationships between large online markets and third-party sellers and shoppers, including competition impacts and handling of data, complaints and reviews.

Nokia on Monday won its first 5G radio contract in China, securing a share in one of China Mobile's three new 5G contracts, while Nordic rival Ericsson lost market share after getting caught up in a political spat.

Live audio app Clubhouse has removed its invite system so that anyone can join the platform, it said on Wednesday. The social app, which saw explosive early growth during the COVID-19 pandemic, previously required people to be invited by an existing user or request to join a waitlist. It said in a blog post that it had always planned to open up the app but that invites had been a way of tempering user numbers.