Facebook says the personal information of up to 87 million users, mostly in the United States, may have been improperly shared by the US social media company with a British political consulting firm, up from a previous estimate of more than 50 million.
Facebook CEO Mark Zuckerberg said in a conference call with reporters on Wednesday that he accepted blame for the data leak, which has angered users, advertisers and lawmakers, while also saying he was still the right person to head the company he founded.
Zuckerberg will testify about the matter next Tuesday and Wednesday during two US congressional hearings.
“When you’re building something like Facebook that is unprecedented in the world, there are going to be things that you mess up,” Zuckerberg said, adding that the important thing was to learn from mistakes.
He said the social networking service had not seen “any meaningful impact” on usage or advertisement sales since the…