Social media giant Facebook believes the data of up to 87 million users was illegally shared with the political consultancy Cambridge Analytica. this is much more than previously disclosed.
The BBC has been told that about 1.1 million of them are UK-based.
Facebook founder Mark Zuckerberg said, “Clearly we should have done more, and we will going forward.”
During a press conference in San Francisco Zuckerberg said that he earlier assumed that if Facebook gave its users tools, it was their responsibility to decide how to use them.