Mark Zuckerberg says his own data was shared by Cambridge Analytica

  • Mark Zuckerberg says his own data was shared by Cambridge Analytica

Mark Zuckerberg says his own data was shared by Cambridge Analytica

He declined to commit to changing all accounts' default settings to collect the minimum amount of data, saying it was a "complex issue" which deserved more than a yes or no answer.

The data scandal wiped away tens of billions of dollars from Facebook's market value, prompted political scrutiny on both sides of the Atlantic and even raised the once unthinkable question of whether Zuckerberg should step down as CEO.

The stock is still down about 7% this year though, making Facebook the worst perfomer among big tech stocks.

Facebook has been consumed by turmoil for almost a month, since it came to light that millions of users' personal information was wrongly harvested from the website by Cambridge Analytica, a political consultancy that has counted U.S. President Donald Trump's election campaign among its clients. The latest estimate of affected users is up to 87 million.

But the thing that most people watching were thinking about was the genuine potential that Zuckerberg is, in fact, a robot.

If you or your friends logged into the app "This Is Your Digital Life", then Cambridge Analytica gathered your Facebook information.

During two days of marathon testimony before Congress, Facebook CEO Mark Zuckerberg managed to avoid answering some critical questions about how user information is managed and the extent to which that data might have been improperly shared with third parties.

At one point, under questioning from Representative Anna Eshoo, Zuckerberg appeared to concede his own personal information was among the data swept up by Cambridge Analytica. It's not clear what that regulation would look like.

Zuckerberg cautioned lawmakers to be careful about what they propose, as larger companies like Facebook have more resources to comply with regulations than smaller ones.

Mark Zuckerberg survived his first clash with Congress.

Wednesday's hearing covered much of the same ground, featuring a litany of apologies and a recap of already announced policy and context about the Cambridge Analytica case.

The moments of tension contrasted with Zuckerberg's relatively smooth ride during Tuesday's marathon Senate hearing, where he earned high marks for comfortably parrying questions from 40-plus lawmakers.

Although shaky at times, Zuckerberg seemed to gain confidence as the Senate hearing progressed.

The 33-year-old founder of the world's best-known social media giant is set for another Capitol Hill grilling on Wednesday before members of the House. A day earlier Zuckerberg batted away often-aggressive questioning from members of the Senate Judiciary and Commerce committees who accused him of failing to protect the personal information of millions of Americans from Russians intent on upsetting the USA election.

Zuckerberg disclosed that his company is "working with" special counsel Robert Mueller in the federal probe of Russian election interference. The company also said the data was never used as part of the firm's work with the Trump campaign. It also reignited long simmering concerns about Facebook's impact on the world's privacy, civil discourse and domestic institutions.