Elon Musk has subpoenaed former Twitter CEO Jack Dorsey as his legal battle with the social media platform gains momentum.

A software engineer known to few outside Twitter has replaced the company's eccentric co-founder Jack Dorsey, famous for his long beard, love of meditation and bitcoin.

Dorsey will continue to head Square, the financial payments service. He has been criticized for leading both companies at once.

The leaders of Facebook, Twitter, and Google were not eager to admit fault when it comes to bad information on their platforms, but it's clear Congress is getting closer to regulation.

Facebook's Mark Zuckerberg, Google's Sundar Pichai and Jack Dorsey of Twitter will testify about the steps they have taken to deal with misinformation about the election, COVID-19 and vaccines.

The Senate Judiciary Committee grilled Facebook's Mark Zuckerberg and Twitter's Jack Dorsey over how they handle false and misleading claims about the election, including from President Donald Trump.

The chief executives of Facebook, Twitter and Google face skepticism from a Senate committee over their decisions about what content to allow and what to take down from their platforms.

Facebook's Mark Zuckerberg, Twitter's Jack Dorsey and Google's Sundar Pichai go before the Senate Commerce Committee to defend Section 230, a law that protects them from lawsuits over users' posts.