Personal data belonging to 533 million Facebook users have been found online. The data is available on a website for hackers and contains information from 106 countries, including phone numbers, Facebook IDs, full names, locations, birthdates and email addresses. News of the breach was first reported by Business Insider on the 3rd of April. Facebook claims the data is old, but as The Register highlights, users DoBs and names are unlikely to have changed. In response, BBC News reports that the Irish DPC is set to investigate (DPC Statement), no response as yet from the ICO. Bloomberg also reports that the breach will bring regulatory action in the US, along with lawsuits.