# OpenAI says its review into hacks, including on Australian government sites, is costing $500,000 a day > Source: > Published: 2026-10-03 05:39:22+00:00 # OpenAI says its review into hacks, including on Australian government sites, is costing $500,000 a day By Josh Taylor Technology reporterSource: [The Guardian Technology](https://www.theguardian.com/us/technology) Company says it is reviewing 50 petabytes of data after its agents accessed websites including Medicare without authorisation - Get our [breaking news email](https://www.theguardian.com/email-newsletters?CMP=cvau_sfl) ,[free app](https://app.adjust.com/w4u7jx3) or[daily news podcast](https://www.theguardian.com/australia-news/series/full-story?CMP=cvau_sfl) [OpenAI](https://www.machinebrief.com/glossary/openai) says its review in response to the Medicare and [Hugging Face](https://www.machinebrief.com/glossary/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. [Continue reading...](https://www.theguardian.com/technology/2026/oct/03/openai-review-hacks-australian-government-sites-costing-500000-a-day) Get AI news in your inbox Daily digest of what matters in AI.