Private patient details stolen in a cyber attack from the Pinnacle Midlands Health Network about a fortnight ago have been published on the internet.
Hackers stole data on up to 450,000 people.
Pinnacle's chief executive, Justin Butcher, wouldn't or couldn't say if it was a ransom attack, or if he knew what the attackers were planning to use the data for.
The Office of the Privacy Commissioner is in daily contact with Pinnacle over the breach.
Deputy commissioner Liz MacPherson spoke to Kim Hill.
