The Cambridge Analytica revelations added to the questions that have been raised about Facebook’s handling of user data and security. The resulting backlash is Facebook’s worst crisis since it was founded by Mr. Zuckerberg and others in 2004. “This was a breach of trust between Kogan, Cambridge Analytica and Facebook,” Mr. Zuckerberg wrote on Wednesday. Lawmakers who have demanded that Mr. Zuckerberg testify before Congress about Facebook’s relationship with Cambridge Analytica were not appeased by his statement. In 2013, Mr. Kogan, the Cambridge researcher, created a personality quiz app that about 300,000 people installed, Mr. Zuckerberg wrote.

Source: New York Times March 21, 2018 20:06 UTC