Information that can identify a specific individual, directly or in combination with other data.
Personally Identifiable Information (PII) is data that identifies, contacts, or locates a single person, or that can be used with other sources to identify an individual. Direct identifiers (name, SSN, email) and quasi-identifiers (ZIP + DOB + gender, famously) both count.
Run a free ComplianceIQ audit against GDPR and we'll surface every gap on this — and the other controls auditors flag — with the exact clause references to fix.