The Australian Competition and Consumer Commission (ACCC) has confirmed a series of its websites have been subject to privacy breaches of an unknown origin.
It said personal data was collected from Recalls Australia, Product Safety Australia, SCAMwatch, and ACCC Public Registers.
According to a statement, email addresses of an undisclosed number of its subscribers were made public.
ACCC claims these were not indexed by search engines or linked from a web page on its sites, but could only be found if specific URL searches were tried.
The ACCC also said it resolved the issue to prevent further access to the email addresses, and is investigating how the breach occurred.
It is also reporting to the Office of Australian Information Commissioner.