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Story summary
- OpenAI emailed an Australian government address to report the June 2026 Medicare data hack in September.
- OpenAI did not tell Defence Minister Richard Marles about the hack during September meeting with CEO Sam Altman.
- Australian Signals Directorate was notified on 15 September 2026, two days before Minister Katy Gallagher learned.
- Prime Minister Anthony Albanese learned of the breach after departing for New York.
- Assistant Minister Andrew Charlton said government will consider criminal investigation referrals and liability.