Privacy Filters

Privacy filters is an AI UX pattern that detects and masks personally identifiable or sensitive data in prompts, retrieved context, or outputs. Users see redacted or blurred values while the product still explains that protection ran.

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User Input
My email is alex@test.com
Sent to LLM
My email is REDACTED

Overview

The design problem

How might we design privacy filters so people can trust and act on AI output?

Use this pattern

When this pattern fits

  • Essential for enterprise applications, healthcare systems, and platforms handling sensitive data where automatic PII detection and masking protects user privacy.

Avoid this pattern

When to skip or lighten it

  • Creative tools where users intentionally paste private drafts and need full fidelity.
  • Admin audit views that are already access-controlled and must show raw values.
  • Offline local models with no outbound risk and no compliance requirement to mask.

States

State model coming soon

Key UX elements

Key UX elements coming soon

Anti-patterns to avoid

  • Silent dropping of PII with no indication anything was removed.

  • Masking that breaks copy/paste for roles that are allowed to see the value.

  • False confidence: labeling content safe when detection coverage is partial.

  • Blurring screenshots in marketing while leaving the same PII in exportable text.

How products use it

ProductImplementation
GleanEnterprise search controls that respect ACL and sensitive fields.
Healthcare AI toolsPHI masking in transcripts and generated notes.
Financial platformsAccount and card redaction in AI summaries and support views.
Enterprise chatbotsPrompt and response filters for emails, phones, and IDs.

Implementation

Copy this prompt to generate a production-ready implementation in Cursor, Claude Code, Lovable, or any AI coding agent.

Generate a production-ready implementation of the "Privacy Filters" AI interface design pattern.

Pattern Definition:

Frequently asked questions

What are privacy filters in AI UX?

Privacy filters detect sensitive data (names, emails, IDs, secrets) and mask or redact it in the UI, often with a control for privileged users to reveal values.

Should masking happen on input, output, or both?

Both when risk is high. Mask before retrieval or logging on the way in, and again on generated text on the way out.

How do users know filtering ran?

Show a clear redacted chip or placeholder, plus a short note like “2 fields hidden.” Invisible filtering erodes trust when something looks missing.

How does this relate to data ownership?

Data ownership covers retention and deletion rights. Privacy filters are the real-time display and processing control for sensitive fields.

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