Data matching activities for third party organisation data breaches

Matching data is one of the key controls we use to assist customers in preventing fraud and non-compliance.

What we’re doing

When we match data, we compare information we get from an outside source with our own.

We’re data matching our Medicare and Centrelink customer records for customers of organisations who’ve recently been affected by a data breach.

We’re doing this to identify any customers at risk of identity compromise and to prevent fraud.


We wrote these protocols with the Office of the Australian Information Commissioner (OAIC) to meet their Guidelines on Data Matching in Australian Government Administration.

How we’re authorised to do this

Legally, we’re authorised to match data. We tell you about our activities in our Privacy Policy. All personal information we deal with aligns with the:

  • Privacy Act 1988
  • relevant secrecy provisions in program legislation.

We work with the Office of the OAIC. This ensures our systems and practices for matching data are appropriate.

How to view or update your personal information

You can view or update your personal details online through myGov using your:

How to protect your personal information

There are steps you can take to protect your personal information after a data breach.

Page last updated: 14 June 2024.
QC 63359