PII Redaction
Category: Data“P-I-I ree-DAK-shun”
Automatically stripping out personal details — names, addresses, card numbers — before text is stored or sent to an AI.
Lesson #9: Securing AI Agents: Cybersecurity Essentials →Blacking out the address on a document before you post it on the bulletin board.
A receipt that shows only the last four digits of your card.
Homeowner phone numbers are masked before job notes are sent to the model for summarizing.
Support transcripts are scrubbed of customer names before being used to train or evaluate a bot.
You cannot leak what you never sent, so redaction is the simplest way to shrink privacy risk.
PII redaction removes personal details before data is stored or sent onward.
Take one document you'd paste into an AI tool and mark every piece of personal information in it.
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Related terms
Picked automatically from the same category and the ideas this term shares.
Hand-picked pair
Information being quietly moved out of your systems to somewhere it doesn't belong.
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Keeping personal or confidential information out of places it shouldn't go — including AI tools.
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Turning words or documents into numbers so a computer can tell which ones mean similar things.
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A method where the AI looks up your real documents before answering, instead of guessing.
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The information an AI studied in order to learn.
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When an AI's answers unfairly favor one group or view because the data it learned from leaned that way.