AgentCloak launches free AI prompt redaction extension

Client-side pseudonymization is the most practical defense against accidental prompt leaks to public LLMs, though relying on on-device NER can foster a false sense of complete data security.

• –Round-trip token replacement preserves conversational context for the model while delivering clear, usable outputs back to the end user.
• –The browser extension format offers zero-friction protection for non-technical personnel handling support tickets, customer communications, and system logs.
• –Local NER models remain susceptible to false negatives, especially with unconventional PII formats, niche identifiers, or multilingual text.
• –Enterprises will still require centralized gateway monitoring because client-side redaction cannot reliably protect unstructured intellectual property or proprietary business logic.