Up to 270,000 people downloaded the app, allowing the data research company to access the relevant data from the profile such as the city a user lives in, or the content they had liked.
Facebook said it found out about Cambridge Analytica's access in 2015, after which it had the firm certify that it deleted the data.
"Someone has to take responsibility for this", he said.
Weakened Merkel begins fourth term as German chancellor
Germany has been locked in political uncertainty for nearly six months after millions of voters abandoned the two main parties. But many SPD members and politicians remain unhappy with their party's involvement in the new coalition.
In a blog post, the social network said Dr Kogan had violated its rules by passing on user data to a third party, and that both he and Cambridge Analytica had failed to delete the information despite providing assurances they had done so.
Cambridge Analytica denied wrongdoing in a statement.
Longtime back Facebook executive, Andrew Bosworth tweeted that it wasn't an unequivocally data breach, people choose in sharing their data with the third party apps and anyhow if those third party apps ignored to follow the data deals with them or users it is a case of violation.
Energy firm Lukoil, which is now on the USA sanctions list and has been used as a vehicle of government influence, saw a presentation on the firm's work in 2014. Alexander Nix told the committee last month that his firm had not received data from a researcher accused of harvesting millions of Facebook users' personal information. Cambridge Analytica insisted that when it learned that it had been sold data it shouldn't have, the firm deleted the data. A whistleblower revealed to the Observer how the firm used personal information taken without authorisation in early 2014 to build a system that could profile individual United States voters, in order to target them with personalised political advertisements.
Pochettino refuses to talk about VAR after Swansea victory
That it took until first-half stoppage time was a surprise, but after Eriksen and Moura combined, Lamela swept home right-footed. Tottenham nearly added a fourth when Son got clear on the left but his cutback was too strong for Fernando Llorente .
Before the Cambridge imbroglio, there were Russian agents running election-related propaganda campaigns through targeted ads and fake political events.
Massachusetts Attorney General Maura Healey said she would launch an investigation because "residents deserve answers immediately". "Using the RNC data was one of the best choices the campaign made". The company was hired to help with voter outreach by the Trump campaign, whose former campaign manager, Steve Bannon, had been on the company's board.
A slide presentation prepared for the Lukoil pitch focuses first on election disruption strategies used by Cambridge Analytica's parent company, SCL, in Nigeria. It acknowledged obtaining user data in violation of Facebook policies, but blamed a middleman contractor for the problem.
And members of Congress investigating 2016 election interference expressed frustration this weekend Facebook hasn't been forthcoming in how its mega social media site was used to influence voting behavior. British officials are also investigating the firm in connection with the June 2016 European Union referendum. Other SCL documents show that the material shared with Lukoil included posters and videos apparently aimed at alarming or demoralising voters, including warnings of violence and fraud. Chancellor, who hasn't personally commented, continues to work at Facebook, and the social media company confirmed to CNN that it is "looking into the situation". While much of the thrust of special counsel's investigation has been tightly held, Mueller has requested that the firm turn over the emails of any employees who worked on the campaign, according to a report in The Wall Street Journal a year ago. The same company also played a role in the Brexit referendum campaign.
Twitter reacts to MI knocking out Houston on buzzer-beater
The Wolverines have a couple of days to celebrate their big win before preparing for the next round in the NCAA tournament. Three-seeded MI trailed sixth-seeded Houston 63-61 with 3.6 seconds left in their West Region matchup Saturday night.