Mark Zuckerberg, the founder of Facebook commented the scandal with the data leak of 50 million users of the social network and the use of it by Cambridge Analytica Company during Trump's election campaign for the first time on Facebook.
'If we find developers that misused personally identifiable information, we will ban them and tell everyone affected by those apps. That includes people whose data Kogan misused here as well', Zuckerberg wrote.
In 2013 Aleksandr Kogan, the Cambridge University researcher created a personality quiz app. It was installed by around 300,000 people. Due to the peculiarities of Facebook's work at that time Kogan was able to access tens of millions of their friends' data. Facebook limited the access of Kogan to the information.
'In 2015, we learned from journalists at The Guardian that Kogan had shared data from his app with Cambridge Analytica. It is against our policies for developers to share data without people's consent, so we immediately banned Kogan's app from our platform, and demanded that Kogan and Cambridge Analytica formally certify that they had deleted all improperly acquired data. They provided these certifications', Zuckerberg reported.
It became known last week that Cambridge Analytica did not delete the data and even used it during the work at the election campaign of Donald Trump. The data of 50 million of Facebook users was used to create an effective political ad in the social network.
'This was a breach of trust between Kogan, Cambridge Analytica and Facebook. But it was also a breach of trust between Facebook and the people who share their data with us and expect us to protect it. We need to fix that', Zuckerberg wrote.
Also, Zuckerberg was invited to the European Parliament to explain this incident. Zuckerberg should explain whether the use of the data of the Europeans for the manipulation took place.