Personally Identifiable Information (PII)

Information that can identify a specific individual directly, like name or email, or in combination with other data, like address and birth date.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Personally identifiable information (PII) is information that can identify a specific individual, either directly, such as a name or email address, or in combination with other data, such as address and birth date. Marketers must protect PII carefully, and privacy laws restrict how it is collected, shared and used.