Privacy Policy

Last Updated: May 16, 2025

1. Introduction

M29 ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and share information about you when you use our M29 Fact Checker browser extension. Our extension is designed to help users verify information on social media and news websites using AI-powered fact-checking technology.

2. Information We Collect

2.1 User Account Information

When you sign in using Google authentication, we collect:

  • Your name and email address
  • Your Google profile ID for authentication purposes

This information is stored securely in our Firebase database and is only used to authenticate you and provide personalized functionality within the extension.

2.2 Fact-Checking Content

When you use our extension to fact-check content:

  • We collect the text you've specifically selected or the content of the webpage that you explicitly request to be fact-checked
  • This content is only temporarily processed during the fact-checking request
  • The content is transmitted securely via HTTPS to our servers

2.3 Extension Activity

The extension operates only on specific domains (social media and news websites) as listed in our manifest.json file. We do not:

  • Track or store your browsing history
  • Collect data from websites outside our allowed domain list
  • Collect any data when the extension is inactive

2.4 Browser Permissions

Our extension requires certain permissions to function properly:

  • activeTab: Allows the extension to access the current tab's content only when you activate the extension
  • storage: Used only to store your authentication state and extension preferences
  • scripting: Enables the extension to inject the fact-checking interface when needed
  • identity: Required for Google authentication
  • tabs: Used to identify when you're on a supported website

These permissions are used solely for providing our fact-checking service and are the minimum necessary for proper functionality.

3. How We Use Your Information

We use the information we collect to:

  • Authenticate you using your Google account
  • Process fact-checking requests on content you explicitly select
  • Maintain and improve the extension's functionality
  • Ensure the extension only operates on supported domains
  • Provide you with fact-checking results

The use of information received from Google APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements.

4. Data Storage and Retention

  • User account information: Stored securely in Firebase for authentication purposes only
  • Fact-checking content: Processed temporarily during fact-checking and not stored permanently
  • Extension preferences: Stored locally on your device using Chrome's storage API
  • Browsing history: Not collected or stored at any point

5. Information Sharing and Disclosure

We do not sell, rent, or share your personal information with third parties except in the following limited circumstances:

  • With service providers who help us operate our extension (such as our fact-checking API provider)
  • When required by law or to protect our rights
  • If M29 is involved in a merger, acquisition, or sale of assets

All third-party services we use adhere to strict privacy and security standards.

6. Your Choices and Rights

You can:

  • Sign out of the extension at any time
  • Disable or uninstall the extension
  • Request deletion of your account by contacting us at contact@m29.ai
  • Access and correct your personal information

For users in the EU, you have additional rights under GDPR including data portability and the right to be forgotten.

7. Security

We implement reasonable security measures to protect your information:

  • All data transmission occurs over secure HTTPS connections
  • User authentication is handled via Google's secure OAuth 2.0 protocol
  • We use Firebase's security features to protect stored data

8. Chrome Web Store Compliance Statement

The M29 Fact Checker extension complies with Google's User Data Privacy policies:

  • We only collect data necessary for the stated functionality (fact-checking)
  • We process data securely using HTTPS
  • Any data transmitted or processed is limited to what's necessary for fact-checking
  • We do not use data for advertising or any purpose other than providing our service
  • The use of information received from Google APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new Privacy Policy on our website and updating the "Last Updated" date.

10. Contact Us

If you have any questions about this Privacy Policy, please contact us at:

Email: contact@m29.ai
Address: M29
Friedrichstr. 215
10969 Berlin, Germany