Have we become too reliant on Big Tech firms?

It's not just Amazon that has been used more during the pandemic. Apple and Android smartphones and tablets, Facebook's apps and Microsoft tools have provided crucial links with friends, family and colleagues.

Before the pandemic, there had been scrutiny on Big Tech. The US House Judiciary antitrust subcommittee sent requests for information to Amazon, Apple, Google owner Alphabet and Facebook in September 2019, with the government concerned that only a small number of companies hold such a big share of the digital market.