Thanks to artificial intelligence, faking someone’s voice is easier than ever – all you need is a few minutes of audio. An investigation by Guardian Australia has found that this technology is able to fool a voice identification system that’s used by the Australian government to secure the private information of millions of people. Data and interactives editor Nick Evershed explains how he discovered this security flaw and AI expert Toby Walsh explores how this technology could potentially make it easier than ever to steal someone’s identity or commit scams