Australia’s privacy watchdog has opened an investigation into Facebook in the wake of the Cambridge Analytica data misuse scandal. Yesterday Facebook revealed that more users than previously thought could have had their personal information passed to the company back in 2014 — saying as many as 87 million Facebook users could have had their data “improperly shared”, thereby confirming the testimony of ex-Cambridge Analytica employee, Chris Wylie, who last month told a UK parliamentary committee he believed that substantially more than 50M Facebook users had had their information swiped. And while most of these Facebook users are located in the US, multiple millions are not. The company confirmed the international split yesterday in a blog post — including that 1 million+ of the total are UK users; more than 620k are Canadian; and more than 300k are Australian. Though in tiny grey lettering at the bottom of the graphic Facebook caveats that these figures are merely its “best estimates” of the maximum number of affected users. After the US, the largest proportion of Facebook users affected by the data leakage were in the Philippines and Indonesia. In a statement today the Australian watchdog (OAIC) said it has opened a formal investigation into Facebook. “The investigation will consider whether Facebook has breached the Privacy Act 1988(Privacy Act).