https://www.theguardian.com/technology/video/2018/apr/05/mark-zuckerberg-facebook-didnt-do-enough-audio

The Facebook chairman has used a conference call to tell reporters that his company ‘didn’t do enough’ to prevent companies like Cambridge Analytica abusing tools on the platform. Mark Zuckerberg, the CEO and co-founder of the firm, accepts it was his ‘mistake’ and that the company should have done more