The revelation on 4 April that information from 87 million Facebook accounts was compromised by data firm Cambridge Analytica created a firestorm in security and privacy circles, and has led to scrutiny of the social media platform in the United States. Now Japanese and UK authorities have jointly launched an investigation according to The Nikkei Asian Review, which was told by Facebook’s Japanese unit on 12 October that they are cooperating with Japan’s Personal Information Protection Commission and that company officials are being called in to provide the commission with answers. The UK’s collaboration with Japan comes after the Information Commissioner’s Office said it would be making enquiries into the scandal together with its overseas counterparts.