Personal details stolen in the Origin Energy data breach could give scammers the opportunity to launch highly targeted attacks, cyber security experts warn, with artificial intelligence (AI) making it easier to impersonate victims, clone voices and build detailed personal profiles. They say the information could be used to create convincing phishing emails, phone calls and text messages, pass identity checks for online accounts, and help criminals impersonate victims to authorise fraudulent transactions.The warning comes after Origin confirmed on Thursday there had been unauthorised access to and disclosure of some customers's data.The information included names, dates of birth, phone numbers, home addresses and email addresses, as well as the last four digits of some credit cards and the last three digits of some bank account numbers.Origin is Australia's largest energy retailer with more than 4.8 million customers 'Your data's been stolen, just verify yourself to us, and we'll fix it for you' or ask you to log into a website."His advice was for customers to "be alert but not alarmed" and avoid clicking links in unsolicited emails or text messages.Rahat Masood, a senior lecturer in cyber security at UNSW's School of Computer Science and Engineering, said criminals no longer needed bank details to launch convincing attacks."People think data is only sensitive if it includes credit card details or bank details," she said