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What is Personally Identifiable Information (PII)?

PII is any information that can be used to identify a specific individual, including names, addresses, email addresses, phone numbers, Social Security numbers, and biometric data.

Personally Identifiable Information (PII) refers to any data that can be used, either alone or in combination with other data, to identify, contact, or locate a specific individual. PII is a broad concept used primarily in US privacy frameworks, encompassing both direct identifiers (name, SSN, passport number) and indirect identifiers (date of birth, zip code, gender) that can identify an individual when combined.

The definition of PII varies across regulations. NIST defines it as information that can be used to distinguish or trace an individual identity. GDPR uses the broader term "personal data" which includes any information relating to an identified or identifiable natural person. DPDPA defines "personal data" as any data about an individual who is identifiable by or in relation to such data.

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