● Sovereign AI cockpit

Say everything to AI. Leak nothing.

Your prompt is inspected inside your own browser. Names, account numbers and keys are swapped for placeholders before the send — and swapped back in the reply.

TRY A PROMPT —or type your own
Your promptraw
On-device3ms
  • Personcontext
  • Account no.pattern
  • PAN cardpattern

validators · local LLM · your dictionary

Leaves browsersealed
Draft a repayment plan for [NAME_1], A/C [ACC_1], PAN [PAN_1]. Keep it polite.
3 secrets sealedraw bytes to AI0

This is normal now. That's the problem.

77%

of enterprise AI users paste company data into chatbots

14×

pastes per day, per person, on average

82%

go through personal accounts no security team can see

Sources: LayerX Enterprise AI telemetry; Menlo Security 2025.

detectsealsend clean
  • person
  • address
  • PAN · checksum valid
  • account no.
  • API key · AWS

Please reconcile this for [NAME_1] at [ADDR_1]. PAN [PAN_1], A/C [ACC_1]. Billing runs with key [KEY_1].

assistant

Done. Reconciliation drafted for Rohan Mehta — PAN AXJPM4821K and A/C 50100234887766 matched to the invoice.

⌘C

Redacted going out. Real coming back.

Reversible redaction — the AI never sees the data, you never lose it. The mapping lives in an encrypted vault on your machine.

PANAadhaarcredit cardsIFSCGSTINIBANSSNAWS keysGitHub tokensJWTs.env blocks
namesaddressesclient listscontract languagemedical contextpasted screenshots

Three detection tiers: instant pattern validators, an on-device language model (Gemini Nano — your text never leaves Chrome), and your own custom dictionaries.

Now your AI clicks buttons by itself.

Agentic browsing is here — and prompt injection is officially unpatched. fearnot's Agent Seatbelt is the flight recorder: every click logged, payments tripwired, injections flagged.

Demo: an AI agent's cursor moves toward a Buy now button. The Seatbelt panel logs each action, raises a payment tripwire, and the agent cursor freezes before it can buy.

Free to be careful. Paid to be thorough.

Free

₹0

  • — Detection on ChatGPT, Claude, Gemini
  • — Warnings
  • — 20 redactions / month
Add to Chrome

Pro

₹499/mo · $6

  • — Unlimited reversible redaction
  • — Screenshot scanning
  • — Custom dictionaries
  • — Minimize modes
  • — Encrypted audit vault
  • — More sites
Go Pro

Team

waitlist

  • — Shared policies
  • — Admin visibility
  • — Zero-data-path compliance
Join waitlist

Say everything.
Leak nothing.

Add to Chrome — free