Personally identifiable information


Madalina Dinita
by Madalina Dinita
Managing Editor
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Affiliate Disclosure

Personally Identifiable Information (PII), as used in information security, is information that can be used on its own or with other information to identify, contact, or locate a single person, or to identify an individual in context. The abbreviation PII is widely accepted, but the phrase it abbreviates has four common variants based on personal, personally, identifiable, and identifying.