The Office of the Privacy Commissioner has begun talking to representatives of tenants, landlords and property managers in an effort to understand what information is being gathered and shared.
RNZ last month revealed hundreds of property managers across the country are signed up to a private social media page where landlords blacklist tenants, which could be a privacy violation.
Privacy Commissioner John Edwards was also concerned some property management agencies were asking for very detailed information from prospective tenants as part of their selection process.
"We are interested in the different perspectives of all participants in the sector to learn more about what personal information about tenants is being collected and why, and how tenants'
personal information is being used and disclosed," Edwards said.
An initial period of information gathering on the practice had revealed large amounts of information was collected from prospective tenants, he said.
If you are a tenant with concerns about the use of your personal information you can contact the office of the privacy commissioner.