Mozilla and Commerzbank pull advertising from Facebook over Cambridge Analytica data breach

US software giant Mozilla and Germany's Commerzbank have both said they will pull advertising from Facebook over the Cambridge Analytica affair. The social network has been under fire all week over revelations that the political consultancy harvested private data from the Facebook profiles of 50m Americans and handed it on to the Donald Trump campaign for use in the micro-targeting of swing voters during the 2016 US presidential election. Facebook CEO Mark Zuckerberg has since apologised and volunteered to testify before Congress, conceding: "We made mistakes". Chief operating officer Sheryl Sandberg said the site would be "open to regulation" as it seeks to rebuild public trust over the handling of users' information and accusations that Russian bots were engaged in the spread of "fake news" and misinformation across its pages in a bid to sway the race for the White House. Writing in a blog post, Mozilla CEO Denelle Dixon said the company was "pressing pause" on its Facebook advertising.