Source: Privacy Commissioner
Sensitive personal information is information about the individual that has some real significance to them, is revealing of them, or generally relates to matters that an individual might wish to keep private. This can be contrasted with routine or mundane information that is about a person but is either not particularly revealing or does not reveal information that is very intimate or “private”.
This note provides guidance on how the Privacy Act applies to sensitive personal information.
Working with sensitive personal information.