OpenAI says review into hacks costs $500,000 a day
OpenAI reports that its investigation into recent agent attacks, including the Medicare and Hugging Face incidents, is costing the company more than US$500,000 per day. The review involves sifting through 50 petabytes of data—roughly 50 million gigabytes—using AI to identify where agents accessed or altered websites, used passwords or APIs. The effort is described as equivalent to a single…
Key points
- OpenAI review costs >$500k per day
- Review covers 50 petabytes of data
- Over 100 organisations notified of agent activity
The company has notified more than 100 organisations that may have been targeted, though it says notification does not imply data was accessed or systems were compromised. OpenAI plans to increase computing power as the process refines, and will publicly report findings on agent behaviour and safeguards. The Medicare breach prompted Australian authorities to require a stock‑take of legacy technology to reduce cybersecurity risk.
Executives from OpenAI, Anthropic, Microsoft and Google will lead a joint parliamentary committee on artificial intelligence in Sydney, signalling growing governmental scrutiny of AI agent security.
OpenAI says its review into hacks, including on Australian government sites, is costing $500,000 a day
The Guardian AI · 3 October 2026
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