The issue: Cambridge Analytica, a U.K.-based political data-analytics firm hired by the 2016 Trump campaign, got its hands on data for 50 million Facebook users — without the users’ knowledge or consent.
“I’ve been working to understand exactly what happened and how to make sure this doesn’t happen again. The good news is that the most important actions to prevent this from happening again today we have already taken years ago,” Zuckerberg wrote in a blog post Wednesday. “But we also made mistakes, there’s more to do, and we need to step up and do it.”
Mark Zuckerberg, in his first comments since the user-privacy crisis now engulfing the company broke last Friday, admitted Facebook has made mistakes and outlined what it plans to do to restore trust with users.
Facebook says Aleksandr Kogan, the University of Cambridge researcher who sold the data to Cambridge Analytica after procuring it through a personality-quiz app dating back to 2013, lied to Facebook and violated its policies. In 2015, Facebook demanded that Cambridge Analytica and Kogan “formally certify that they had deleted all improperly acquired data” and they provided those certifications, according to Zuckerberg.