More details are emerging about data compromised in the Manage My Health portal breach. 

The privately-owned platform has started notifying affected GP clinics. 

College of GPs President Luke Bradford says much of the information is eight to nine years old. 

He told Andrew Dickens Northland appears to be the most-affected region. 

Bradford says although it doesn't have anything to do with Whangārei Hospital, it seems be predominantly files out of its systems. 

He told Dickens they mostly don't appear to include lab results, medicines, or notes of personal conversations with doctors. 

Bradford says they've been told its inwards letters, predominantly coming from specialist appointments in the hospital system. 

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