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. Zuckerberg responded, "I'm not sure what that means". He also is to testify Wednesday before the House Energy and Commerce Committee.
Zuckerberg looked mostly comfortable and confident through the nearly 5-hour long hearing.
The social media giant has started to roll out alerts to users, but the process is expected to take several days to complete.
"Senator, in retrospect, I think we clearly view it as a mistake that we did not inform people", Zuckerberg admitted. "It certainly doesn't feel that way to me", Zuckerberg said, nearing the end of a almost 5-hour hearing. He insists that Facebook is an "idealistic" company that did not consider the possibility that its users data could be weaponized for electoral purposes.
Russian lawmaker warns against Syria strike
Later on Tuesday, the UN Security Council will vote on competing USA and Russian draft resolutions on the Syria incident. Sheikh Tamim bin Hamad Al Thani said he and Trump "see eye to eye" on Syria.
Senator Dick Durbin (DD): "Would you be comfortable sharing with us the name of the hotel you stayed in last night?"
The social network is in the process of letting up to 87 million users know that their information may have been accessed by Cambridge Analytica.
Sen. Ben Sasse (R., Neb.) pressed Facebook CEO Mark Zuckerberg Tuesday over how his platform would define "hate speech" on Tuesday, wondering whether pro-life voices could be stifled if deemed too upsetting. "We'll do everything possible to ensure these elections are safe", said Zuckerberg.
Zuckerberg is also expected to be asked about Russia's use of US social media during the 2016 elections - a subject of several congressional investigations and special counsel Robert Mueller's probe into Russian interference.
Lovren reveals rant inspired Liverpool to sink City
The Reds will discover their semi-final opponents when the draw is made on Friday at 12:00 BST in Nyon, Switzerland. Liverpool extended their lead with two more goals to take a 5-1 aggregate win.
But despite Mr Zuckerberg's apologies for the scandals and his description of combating Russian hackers as an "arms race", it does not appear to have affected the company's worth.
For five hours, Zuckerberg remained stoic while answering questions about specific solutions to the current data breach.
Zuckerberg said its audit of third-party apps would highlight any misuse of personal information, and said the company would alert users instantly if it "found anything suspicious".
Johnson: So it's kind of safe to say that Facebook users don't seem to be overly concerned about all these revelations, although obviously Congress apparently is?
Zuckerberg Testimony Doesn't Change Our View on Facebook
The company claimed it was using Like button tracking for security reasons, in order to stop fake accounts and botnets. Not buried in the settings somewhere but right there", the 33-year-old internet billionaire told the hearing.
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