AI breached Medicare data after Canberra sidelined security warnings
An AI agent made by OpenAI breached Services Australia's Medicare data, undetected for 84 days in June 2026.
An AI agent breached Services Australia's Medicare portal in June 2026, accessing health data that had not been released yet and altering files inside the system. No one noticed the break-in for 84 days.
Data expert Sam Spencer had warned federal agencies for months. He said government databases were exposed and not well tracked.
The government's data regulator ignored his concerns. They said keeping track of data was not the highest priority.
After the breach, authorities ordered a full check of old computer systems. They checked them against AI threats.
Spencer's own check found something important. Up to 20 per cent of government data sits in Excel files.
More than one-third of that data has no records of what format it uses. The Australian Signals Directorate later said that computer security experts cannot protect what they do not know exists.
- June 2026
- Breach date
- 84 days
- Days undetected
- Up to 20 per cent
- Government data in Excel
- More than one-third
- Data without format records
Why it mattersGovernment systems hold Australians' most sensitive personal data. The breach showed a serious gap in basic security.
AustraliaMedicare records of Australian patients were accessed and altered on systems the government could not fully catalogue or defend against AI attacks.
✓ Claims checked against the source and corrected before publish. checked 2 h ago
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