Privacy Policy: Pyralink AI Paste Guard
Last updated: 24 October 2026
This policy covers the Pyralink AI Paste Guard extension for Google Chrome. It is published by Pyralink Innovation Ltd (“Pyralink”, “we”, “us”), a company registered in England and Wales (company number 14512137), 502 Aidan House, Sunderland Road, Gateshead, NE8 3HU, United Kingdom. Contact: info@pyralink.co.uk.
For our website and services, see the main Pyralink Privacy Policy.
1. Summary
Pyralink AI Paste Guard does not collect, transmit, sell or share any data. All checks run on your device, inside your browser. Pyralink receives nothing from the extension.
2. What the extension does with text
When you paste into, or send from, a prompt box on a supported AI chat site (chatgpt.com, chat.openai.com, copilot.microsoft.com, gemini.google.com, claude.ai, perplexity.ai and www.perplexity.ai), the extension reads that text in your browser. It does this only to check for passwords, keys, personal data and other sensitive items. The “Try it” box on the settings page works the same way.
- The text is checked in memory, on your device, and is never sent to Pyralink or anyone else.
- The text is never saved to storage or logs.
- Apart from the prompt box and the site address (used to check whether you have paused the extension on that site), the extension does not read the page. It does nothing on any other website.
- The warning shows each item it found in masked form, inside a closed panel that the website cannot read.
If you choose to continue (with or without redaction), the text goes into the AI chat site as normal. What that site does with it is covered by its own terms and privacy policy.
3. What is stored on your device
The extension uses Chrome’s local extension storage (chrome.storage.local). It keeps:
- Your settings: on or off, warn or block mode, paste and send checks, which detectors are on, your custom keywords (for example client names) and any supported sites you have paused.
- A warning log: for each warning, the time, the type of item found (for example “Email address”), your choice (redact, send anyway or cancel) and whether it was a paste or a send. It never holds the text itself or the matched values. The popup uses it to show your count for the last 7 days. Entries older than 90 days are removed automatically when the next warning is recorded, and the log never holds more than 2,000 entries.
This information stays in your browser profile on this device. It is not synced to your Google account, websites cannot read it, and Pyralink cannot see it. To delete it, use Clear warning history or Restore default settings on the extension’s settings page, or uninstall the extension.
4. What we do not do
- We do not collect personal data or browsing history.
- We do not use analytics, tracking, advertising or cookies in the extension.
- The extension makes no network requests and does not load remote code.
- We do not sell or transfer any data to third parties.
5. Links
The popup and settings page include a link to the Pyralink website. Nothing is sent unless you click it. If you do, your browser opens www.pyralink.co.uk in a new tab, and the link includes campaign labels (UTM parameters) showing that the visit came from the extension. The website is covered by our main Privacy Policy.
6. Permissions
- storage: to save your settings and the warning log on your device.
- Content scripts on the supported AI chat sites (listed in section 2): so the extension can check text you paste or send on those sites. It requests no other permissions and has no access to any other site.
7. Children
The extension is not aimed at children and collects no data from anyone.
8. Your rights
Pyralink holds no personal data from this extension, so there is nothing for us to access, correct or delete. All extension data is in your browser and under your control, as described above. For questions, contact info@pyralink.co.uk. You can also complain to the Information Commissioner’s Office (ico.org.uk), the UK data protection authority.
9. Changes
If this policy changes, we will update the date above and publish the new version at this address. If a future version ever collects data, we will update this policy and the Chrome Web Store disclosures before that version is released.