Cybersecurity Glossary: Terms Explained in Plain English | TecnetOne

What Is Personal Data (PII)? Definition | TecnetOne Glossary

Written by Tecnet One | Oct 7, 2026, 4:37:28 PM

Personal data is any information that identifies or can identify a person, such as a name, email address, phone number or Social Security number; in the US it is often called personally identifiable information (PII). Sensitive data is the subset that can cause serious harm if misused, such as health, financial or biometric information, and privacy laws require stronger protection for it.

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PII, personally identifiable information, sensitive data, sensitive personal information, personal information