AI Security · 5 min read · 2026-11-09

The AI Airlock Pattern: Stripping PII and Secrets Locally Before Prompting Cloud LLMs

Key Takeaway

How to debug production logs and contracts with ChatGPT, Claude, or Gemini without leaking customer emails, IP addresses, or bearer tokens.

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Before pasting logs, configs, or contracts into a cloud LLM, run them through `privacyfold.ai_airlock`. It replaces emails, API keys (`sk-...`, `ghp_...`), JWTs, phone numbers, and IPv4 addresses with reversible local tokens (`[EMAIL_1]`, `[SECRET_1]`) while keeping the mapping table strictly inside your browser tab.

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Run the client-side tool explained in this guide with zero server uploads.

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