Zuckerberg faced tougher questions from House lawmakers over Facebook's stance than during Tuesday's five-hour session in the Senate, where his defense of data sharing was weakly challenged.
"Yes", Zuckerberg said when Congresswoman Dana Louise DeGette asked whether Facebook has witnessed no significant increase in users deactivating their accounts.
Facebook's CEO repeated the company line defending its introduction of a messaging app for very young children: It just wants to provide a way for parents to keep in touch with their children.
"It's pretty obvious to me that someone is listening to the audio on our phones", Buschon said.
The EU's justice and consumer commissioner Vera Jourova said it was "only good news" that Zuckerberg had acknowledged Facebook planned to follow the bloc's strict new rules worldwide.
Zuckerberg admitted that Facebook hasn't taken enough responsibility in protecting their users, given the way in which the Cambridge Analytica scandal unfolded. In total, Facebook's stock has gained 4.5 percent since the start of the hearings, CNN Money reports.
Zuckerberg disclosed that his company is "working with" special counsel Robert Mueller in the federal probe of Russian election interference.
Eight years ago, the world was already anticipating that Facebook may be in the position to sell people's information, as has happened in the Cambridge Analytica scandal. "And generally this idea of tracking everyone around the Internet is actually, unfortunately, a pretty well established practice that Facebook is one of many companies doing". Some of the House members curtly cut him off in questioning, trying to make the most of their four minutes each. Saying "I am Sorry", and feigning ignorance made Zuckerberg richer by $3 billion. It's not that they are so old and out of touch with technology.
It really is a insane thought and now that people are becoming more aware of it, they will tend to be more careful as they might not have the privacy that they feel.
Doctors, however, point out that there is a valid health reason why Mr Zuckerberg sat on a cushion. We have to make sure those connections are positive.
Wearing a dark suit and tie and politely prefacing nearly every remark with "Congressman" or "Congresswoman", Zuckerberg appeared even more controlled than he did on Tuesday when he testified before senators.
On regulation, Zuckerberg said he was open to it.
"It is inevitable that there will need to be some regulation" of internet firms, Zuckerberg said on Wednesday, but he again steered away from any specifics.
Zuckerberg has earlier said Facebook will ensure that its platform is not misused to influence elections in India and elsewhere.
At the hearing before the HouseEnergy and Commerce Committee Wednesday, Rep.
Zuckerberg told lawmakers that Facebook had now removed the option for advertisers to exclude ethnic groups from targeting. It's that Facebook doesn't view or define itself in the way that its more than 2 billion users do.
Facebook Chief Operating Officer Sheryl Sandberg told NBC News on Thursday that Facebook users could have to pay to completely opt out of their data being used to target them with advertising.
Investigative reporter Julia Angwin says that Facebook is not the only company that collects data in this way.
"We have had a lot of these controls in place for years".
Pallone said that if Democrats were in charge, "then we would push all the more".