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Extension Privacy Policy

Effective date: June 9, 2026  ·  Applies to: FactGuard Chrome/Edge browser extension v0.1.0 and later  ·  Publisher: RAYFINITE LLC

The short version: the Extension stores your API key in your own browser. When you submit a claim for fact-checking, that claim text is sent to our verification server. We do not read your web pages, do not track your browsing, and do not collect personal data.
Not legal advice. This document is a general-purpose template provided for transparency. It is not legal advice, is not attorney-drafted or certified, and is not guaranteed to be enforceable or compliant with any particular law. You should have it reviewed by a qualified attorney licensed in the State of Wyoming before relying on it.

1. Overview

The FactGuard browser extension ("the Extension") is a single-purpose tool: it fact-checks claims you explicitly select or enter, and returns a verdict. This policy describes exactly what data the Extension handles — and what it does not.

The Extension requests the minimum permissions required to operate: contextMenus (to add a right-click menu item), storage (to save your API key locally), and a single-host permission to api.factguard.org (to send fact-check requests). No other permissions are requested.

2. What Data the Extension Collects

2.1 API Key (stored locally)

When you enter a FactGuard API key in the Extension's Settings page, it is saved to chrome.storage.sync — your browser's own encrypted key-value store, scoped to this Extension only. The key roams across your signed-in Chrome instances (this is a Chrome platform feature) but is never transmitted to any server by the Extension except as an authentication header in the fact-check API request described in Section 2.2.

Stored where
Your browser's local/sync storage only.
Stored for how long
Until you delete it from Settings or uninstall the Extension.
Accessible by whom
This Extension only. No webpage, no third party, and no other extension can read it.
Sent where
Included as the x-api-key header in API requests to api.factguard.org (see Section 2.2).

2.2 Claim Text (sent for verification)

When you select text on a page and choose "Fact-check with FactGuard," or when you type or paste a claim into the Extension popup and click Fact-check, that claim text is sent to our verification server at https://api.factguard.org/v1/factcheck.

What is sent
The claim string (up to 2,000 characters), plus your API key in a request header.
What is NOT sent
The URL of the page you were on, your browsing history, your identity, any other text on the page, cookies, or any other data.
Retained by the server
Claim text may be retained on our servers to power rate-limiting, abuse prevention, and aggregate (anonymised) accuracy reporting. See the FactGuard main privacy policy at factguard.org/privacy for server-side retention details.

2.3 Session State (in-memory only)

Between the moment you trigger a fact-check and the moment the result is displayed, the Extension stores a small in-memory record in chrome.storage.session: the pending claim, the API response, and a loading flag. This data is automatically cleared when your browser session ends. It is never written to disk outside the session store and is never transmitted anywhere.

3. What Data the Extension Does NOT Collect

4. Third-Party Data Sharing

The Extension communicates with exactly one external server: api.factguard.org, operated by RAYFINITE LLC. No data is shared with any other third party through the Extension itself. The Extension does not embed Google Analytics, Meta Pixel, or any other analytics or advertising service.

We do not sell, rent, or trade any data you submit through the Extension to any third party for any purpose.

5. Children's Privacy

The Extension is not directed at children under 13 and does not knowingly collect information from children under 13. If you believe a child under 13 has submitted data through the Extension, please contact us at the address below and we will promptly delete it.

6. Changes to This Policy

If we make material changes to this policy, we will update the effective date at the top of this page and, where feasible, note the change in the Extension's release notes. Continued use of the Extension after a policy update constitutes acceptance of the revised policy.

7. Contact

For questions about this privacy policy or the Extension's data practices, contact:

For the full FactGuard platform privacy policy (covering the web app, API, and account data), see factguard.org/privacy.

This policy covers the FactGuard browser extension only. The FactGuard iOS app and web platform are governed by separate policies linked at factguard.org/privacy.