A 17-year-old Florida boy masterminded the hacking of celebrity accounts on Twitter, including those of US Democratic presidential candidate Joe Biden and Tesla Chief Executive Elon Musk, officials said on Friday.
Facebook on Friday added licensed music videos to the social network in the US, challenging YouTube for the attention of online audiences.
Facebook advertising boycott campaign organisers said that the campaign would "not go away" until their concerns were addressed and they would ask advertisers in Europe to join their cause.
Turkey passed a law regulating social media content. It requires foreign social media sites to appoint Turkish-based representatives to address authorities' concerns over content and includes deadlines for removal of material they take exception to.
Facebook has won the first round of its court battle against what it says are excessive demands from European Union antitrust regulators after Europe's second-top court temporarily halted such requests until it makes a final ruling.
Facebook is asking European Union courts to review "exceptionally broad" requests by antitrust regulators that would scoop up employees' personal information.
Social media has become the target of a duelling attack ad campaign being waged online by the sitting president and his election rival. They're shooting the messenger while giving it lots of money.
Twitter reported its highest-ever yearly growth of daily users who can view ads, beating analysts' estimates on usage.
Twitter said on Wednesday that the hackers who breached its systems last week likely read the direct messages of 36 accounts, including one belonging to an elected official in the Netherlands.
Twitter said on Tuesday it would permanently suspend accounts that violate its policies while tweeting about QAnon, a fringe group that claims "deep-state" traitors are plotting against President Donald Trump.
Facebook has started adding informational labels to all posts about voting by federal elected officials and candidates in the US, as it said it would do. But the move appears to be sowing confusion rather than dispelling it.
Facebook on Tuesday placed a "voting info" label on a post by US President Donald Trump that said mail-in voting would lead to a "CORRUPT ELECTION."