By Cecilia Kang in addition to Sheera Frenke

Facebook had non previously disclosed how many accounts had been harvested yesteryear Cambridge Analytica, the theatre connected to the Trump campaign. It has also been reluctant to discover how it was used yesteryear Russian-backed actors to influence the 2016 presidential elections.
The novel seek to appear to a greater extent than transparent virtually the information leaks — including a rare question-and-answer session alongside Mr. Zuckerberg in addition to reporters — came only before Mr. Zuckerberg’s expected testimony adjacent calendar week on Capitol Hill, where he volition most probable appear upwardly criticism over how the fellowship collects in addition to shares the personal information of its users. Sheryl Sandberg, Mr. Zuckerberg’s occur deputy, has several national telly interviews scheduled for afterwards this week.
The fellowship said that on Mon it would showtime telling users whether their information may take away maintain been shared alongside Cambridge Analytica.
Andy Stone, a spokesman for Facebook inward Washington, said the 87 1 grand one thousand figure was an gauge of the full number of users whose information could take away maintain been acquired yesteryear Cambridge Analytica. He said that the gauge was calculated yesteryear adding upwardly all the friends of the people who had logged into the Facebook app from which Cambridge Analytica collected profile data.
“We wanted to issue the maximum number of people who could take away maintain been affected,” Mr. Zuckerberg told reporters.
It remains unclear just how many users had their personal information accessed yesteryear Cambridge Analytica. The theatre said Midweek that it had licensed information for no to a greater extent than than thirty 1 grand one thousand users of the social network.
Facebook also released a lengthy document describing how it would assemble personal information inward the future. The fellowship said it would confine the types of information that tin survive harvested yesteryear software used yesteryear exterior businesses. The changes hateful that users volition take away maintain to give permission before an app tin collect information beyond their names in addition to addresses.
The fellowship also said it would no longer let outsiders to role apps to assemble information virtually the religious or political views of its users. And it volition halt using third-party information from companies such equally Experian in addition to Acxiom to assist supplement its ain information for advertizing targeting.
The document revealed that the information on populace profiles of the social network’s 2 billion users could take away maintain been collected yesteryear third-party companies without their explicit consent.
“It’s clear right away that nosotros didn’t focus plenty on preventing abuse,” Mr. Zuckerberg said. “We didn’t accept a broad plenty sentiment of what our responsibleness is. That was a huge mistake, in addition to it was my mistake.”
The Federal Trade Commission is investigating whether Facebook violated a 2011 understanding meant to protect users’ privacy. User information is crucial to the company’s business, because it is used to deliver advertising to users.
Mr. Zuckerberg is scheduled to bear witness virtually the company’s treatment of sensitive user information before the Senate’s Commerce in addition to Judiciary committees on Tuesday in addition to the House Energy in addition to Commerce Committee on Wednesday.
“This hearing volition survive an of import chance to shed calorie-free on critical consumer information privacy issues,” said Representatives Greg Walden, Republican of Oregon, in addition to Frank Pallone, Democrat of New Jersey, of the House committee.
Senator Chuck Grassley, the Republican chairman of the Judiciary Committee, said, “With all of the information exchanged over Facebook in addition to other platforms, users deserve to know how their information is shared in addition to secured.”
Facebook’s problems stretch dorsum before the reports virtually Cambridge Analytica, to before investigations into how Russian actors infiltrated the platform yesteryear placing ads in addition to posts to influence the 2016 election. Mr. Zuckerberg initially dismissed the thought of unusual interference on Facebook equally a “crazy idea.”
Since then, the fellowship has been the focus of investigations yesteryear constabulary enforcement in addition to congressional committees that are delving into the Russian influence campaign. Facebook right away acknowledges that its platform was used to sway voters.
All those troubles take away maintain prompted investors to flee the company, in addition to its stock has fallen sharply inward recent weeks.
In response, the fellowship has pose its executives forepart in addition to center.
Mr. Zuckerberg typically talks to groups of reporters solely after the fellowship releases its quarterly fiscal reports. But after non responding inward populace for several days next the Cambridge Analytica disclosure, he has given a serial of interviews.
And Ms. Sandberg, Facebook’s main operating officeholder in addition to the mo most recognizable appear upwardly at the company, is laid upwardly to survive interviewed this calendar week yesteryear Fox News, “PBS NewsHour,” NBC’s “Today” demo in addition to Bloomberg. Ms. Sandberg volition survive interviewed remotely from California.
Facebook said its novel openness was meant to demo that it takes the intense criticism over its treatment of user information seriously.
In Washington, Facebook employees in addition to populace relations firms retained yesteryear the fellowship take away maintain talked to regulators in addition to congressional staff members virtually novel privacy measures, including updates to policies that are intended to brand them easier to understand.
On Wednesday, Mr. Zuckerberg provided a preview of what he volition say Congress adjacent week. He said Facebook was “an idealistic in addition to optimistic company.”
But he acknowledged that the fellowship had committed serious errors yesteryear non ensuring that robust safeguards were inward house for users.
Asked if he should even thence survive leading the company, he said, “Yes. Life is virtually learning from the mistakes in addition to learning what you lot ask to become forward.”
Terrell McSweeny, a Democratic fellow member of the Federal Trade Commission, said that Mr. Zuckerberg has a big chore ahead of him inward Washington.
“I cry upwardly it is of import for Zuckerberg to clearly explicate how Facebook plans to earn dorsum consumer trust,” Ms. McSweeny said. “Consumers ask reassurance that their information are non existence misused.”
Correction: Apr 4, 2018
An before version of this article attributed incorrectly an gauge that fifty 1 grand one thousand Facebook users’ personal information may take away maintain been improperly shared during the 2016 election. The gauge was based on documents in addition to sometime Cambridge Analytica employees in addition to associates. It did non come upwardly from Facebook.
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