In a post about Facebook’s privacy changes, CTO Mike Schroepfer disclosed that 87 million users – not 50 million – may have had their private information improperly shared with Cambridge Analytica.

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Facebook said on Wednesday the number of users whose information was shared with Cambridge Analytica was about 87 million – a much larger number than originally reported.

Mike Schroepfer, the company’s CTO, disclosed the updated number in a post about the company’s privacy changes, which include restricting the availability of user information to third-party apps, deleting messages over a year old and disabling a feature that lets users search a profile by using phone numbers and email addresses.

“Given the scale and sophistication of the activity we’ve seen, we believe most people on Facebook could have had their public profile scraped in this way,” Schroepfer wrote.

Last week, JOL reported that the company’s CEO Mark Zuckerberg has agreed to testify before Congress, following pressure from lawmakers, the media and the public.