OpenAI says its review into hacks, including on Australian government sites, is costing 500,000 a day

OpenAI has warned that its review may identify more organisations that have had websites accessed by its AI agents without authorisation. OpenAI has warned that its review may identify more organisations that have had websites accessed by its AI agents without authorisation. Sat 3 Oct 2026 01.39 EDTLast modified on Sat 3 Oct 2026 01.40 EDT OpenAI says its review in response to the Medicare and Hugging Face agent attacks is costing the company more than US$500,000 per day, as it deploys AI to examine data that would take a human 66m years to read. The company has warned the review is ongoing, and more organisations may be informed they've been targeted in the near future. On Friday evening, OpenAI revealed agents had hacked into a New South Wales government website in June and accessed historical non-public data on bushfires without authorisation.