Facebook CEO Mark Zuckerberg apologized yesterday (March 21st) for a, quote, “major breach of trust,” in his first remarks since news broke five days earlier about the scandal involving the data of 50 million users being taken without their knowledge or permission and given to Cambridge Analytica, a U.K.-based data-mining firm involved in Donald Trump’s 2016 presidential campaign. Zuckerberg told CNN Wednesday, “I am really sorry that happened,” and talked about steps being taken to protect user data, saying it’s Facebook’s responsibility to do so or, quote, “we don’t deserve to have the opportunity to serve people.” Several hours earlier, Zuckerberg had acknowledged the company’s mistakes in a Facebook post. Facebook’s shares have fallen about eight percent since the Cambridge Analytica scandal become public, reducing its market value by some $46 billion. Users have also been considering leaving Facebook, with #DeleteFacebook trending on Twitter for a time earlier this week.