naosuu
Privacy Policy
Last updated: September 24, 2026
The short version: Naosuu processes your prompt text entirely on your device. It is never sent to any server. The personal data we collect for licensing and subscriptions is your email address and, when you subscribe through Stripe, your first and last name. We use this information to manage your subscription, send trial-related emails, and, where permitted, send marketing or promotional communications that may be relevant to you.
What data Naosuu collects
1. Email address and subscriber name
- Why: To activate your free trial, validate your subscription, identify the subscribed customer, send transactional emails such as a reminder before your trial ends, and send newsletters, marketing or promotional materials, and other information that may be of interest to you.
- When: When you enter your email on naosuu.com/welcome to start a free trial, or when you subscribe through Stripe and Stripe provides your first name, last name, and email address to Naosuu.
- Where it goes: Your email address is sent to our license server (
naosuu-worker.naosuu.workers.dev, hosted on Cloudflare Workers) to create your trial record or Stripe checkout session, and to verify your subscription status. When you subscribe, your first name, last name, and email address are provided to Naosuu through Stripe. For trial confirmation and reminder emails, your address is also passed to Resend (see Third-party services below). If your trial or subscription is inactive and you choose to reactivate from the extension, the link it opens includes your email address in the web address so that naosuu.com/welcome can prefill it; naosuu.com receives it as part of that page request. - How long it's stored: Locally in
chrome.storage.localfor as long as the extension is installed. On our license server for as long as your account exists.
2. Trial record
- Why: To track the start and end date of your free trial so the extension can accurately reflect your access status.
- When: Created when you start a free trial on naosuu.com/welcome.
- What it contains: Your email address, trial start date, and trial end date.
- Where it goes: Stored in Cloudflare KV (key-value storage) on our Cloudflare Workers infrastructure.
- How long it's stored: Automatically deleted within 60 days after your trial starts, or immediately when you subscribe.
2a. Trial eligibility marker
- Why: To prevent the same email address from receiving repeated free trials or unnecessary trial-confirmation emails.
- What it contains: A server-secret-keyed, pseudonymous digest derived from the normalized email address. The marker does not contain the email address itself.
- Where it goes: Stored in Cloudflare KV.
- How long it's stored: Up to five years.
3. License token
- Why: To authenticate your subscription without requiring a password on every check.
- When: Issued by our license server after successful trial activation or subscription.
- Where it goes: Stored locally in
chrome.storage.local. Transmitted with your email address to our license server to validate your access: at most once every 24 hours during normal use, and immediately when you activate the extension or re-check your access from the extension. - How long it's stored: Locally for as long as the extension is installed.
4. Professional contact information for B2B outreach
- What we may collect: Professional contact information such as names, job titles, business email addresses, firm or company names, and publicly available business contact details.
- Where it may come from: Publicly available sources, professional networking sites, business directories, law firm websites, company websites, or similar professional sources.
- Why: For B2B outreach and marketing related to Naosuu's browser extension and services.
- Opt out: You may opt out of receiving any, or all, marketing communications from us by following the unsubscribe link provided in any email we send, or by visiting naosuu.com/unsubscribe.
Marketing communications
We may use your personal information, such as your email address, to contact you with newsletters, marketing or promotional materials, and other information that may be of interest to you. You may opt out of receiving any, or all, of these communications from us by following the unsubscribe link provided in any email we send.
What data Naosuu does NOT collect
- Prompt text. Text you type into ChatGPT, Claude, or Gemini is processed entirely on your device. It is never sent to Naosuu's servers.
- Detected entities. Names, SSNs, emails, or any other sensitive values detected in your prompts, together with any aliases you confirm for them, are stored only in
chrome.storage.sessionand in memory, so Naosuu can use the same placeholders and recognise the same values in later prompts in that tab. They are cleared when the tab closes or the browser restarts, and are never transmitted. - Dismissed detections. When you remove a detection from the review panel, its value and type are kept only in
chrome.storage.sessionfor that tab, so the same suggestion is not offered again while the tab is open. They are cleared when the tab closes or the browser restarts, and are never transmitted. - Document contents. Files you upload are processed locally. No document content leaves your browser.
- Vault entries. Custom patterns you save in the Naosuu vault are stored only in
chrome.storage.localon your device. - Local usage totals. Naosuu stores three aggregate counts in
chrome.storage.local: prompts analyzed, prompts protected, and sensitive items protected, so the extension can display your protection totals across prompts and browser sessions. It also stores small local settings, such as which tips or reminders it has already shown you. These counters and settings contain no prompt text, detected values, categories, websites, or activity history; they are never transmitted to Naosuu or any third party. They remain on the device until the extension's locally stored data is cleared or the extension is uninstalled. - Browsing history. Naosuu does not read, record, or transmit any information about which pages you visit.
Third-party services
| Service | Purpose | Data shared |
|---|---|---|
| Cloudflare Workers | License validation, trial management, and Stripe checkout creation | Email address, subscriber name for paid subscriptions, license token, trial dates |
| Cloudflare KV | Storage of free trial records and pseudonymous trial-eligibility markers | Email address, trial start and end dates; server-keyed email digest |
| Stripe | Subscription payment processing | First name, last name, email address, and subscription status. Payment card details are handled directly by Stripe — Naosuu does not receive or store payment card details |
| Resend | Sending trial-confirmation and trial-reminder emails | Email address |
No other third parties receive any data from the Naosuu extension.
Data security
- All communication with our license server uses HTTPS.
- License tokens are stored in
chrome.storage.local, scoped to the extension and not accessible to websites. - Session maps (temporary entity-to-placeholder mappings) are stored in
chrome.storage.session, scoped to the browser session, and cleared when the associated tab closes or the browser restarts. - We do not store payment card numbers or sensitive financial data.
Your rights
You can remove all locally stored data at any time by uninstalling the extension. To request deletion of your account data from our servers, contact privacy@naosuu.com.
Changes to this policy
If this policy changes materially, the updated version will be published at this URL with a new "Last updated" date.
Contact
Naosuu LLC
418 Broadway, Ste R
Albany, NY 12207
privacy@naosuu.com