Investments in Facebook totaling US$500 million lead to speculation that its value could be as high as US$50 billion.
A court in Russia orders the arrest of Alexei Navalny's ally Leonid Volkov for "appealing to minors to join illegal protests". Volkov, who lives in the European Union and who will not be extradited, said on Facebook that he will "ignore the charges".
The French government orders the Grand Mosque of Pantin in the Paris suburb of Pantin to close for at least six months after an investigation found the mosque's Facebook page shared a video that incited hatred towards history teacher Samuel Paty, who was beheaded by a radical Islamist outside his school. Interior Minister Gérald Darmanin says France was confronted by an "enemy within".
New Zealand news media company Stuff announces it will temporarily stop posting articles to Facebook and Instagram, saying they have not done enough to address fake news, hate speech, and false advertising.
A court filing by California Attorney General Xavier Becerra reveals for the first time that the state launched an 18-month investigation into Facebook’s privacy issues in response to the Cambridge Analytica scandal. The filing accuses the company of refusing to cooperate with investigators, and asks the court to require them to turn over information regarding third-party access to data and changes in privacy settings.
Roskomnadzor, the state communications watchdog, states Google and Facebook published political advertising the day before and during the election, even though it requested them to ban such publication "in line with Russian law". The watchdog labels the tech giants' actions as "interference in Russia’s sovereign affairs".