Facebook said the personal information of up to 87 million users may have been improperly shared with political consultancy, Cambridge Analytica.
It says most of those whose data was shared with Cambridge Analytica, which worked on President Donald Trump’s 2016 campaign, were in the U.S.
Facebook says it is now taking steps to restrict the personal data available to third-party app developers.
Cambridge Analytica has denied wrongdoing.
