Why did an OpenAI system hack Australia's health system - and can it be stopped in the future?

An OpenAI agent has gone "rogue" and "infiltrated" an Australian government website in what cyber-security experts are calling the first hack of its kind. But why did it take the government months to discover what happened - and could it happen again? The hack was carried out by an AI agent - an autonomous computer program that uses AI to complete a task with minimal human oversight. On 18 June one of OpenAI's agents went rogue during a test exercise - the company has said it was supposed to "look up answers, and available statistics for questions about Australia during an internal evaluation".