What is personally identifiable information (PII)?
Personally identifiable information (PII) is any data that could potentially identify a specific individual.
Any information that can be used to distinguish one person from another and can be used to deanonymize previously anonymous data is considered PII.
PII may be used alone or in tandem with other relevant data to identify an individual and may incorporate direct identifiers, such as passport information, that can identify a person uniquely or quasi-identifiers, such as race, that can be combined with other quasi-identifiers, like date of birth, to successfully recognize an individual.