YUNTUN STUDYSTUDIOS

Privacy Policy

Last updated: October 15, 2026

YUNTUN STUDYSTUDIOS (“Yuntun”, “we”, “us”, or “our”) operates the website https://www.yuntun-bj.com and related account services. This Privacy Policy explains what information we collect, how we use it, and the choices you have.

By using our website or signing in (including with Google), you agree to this Privacy Policy.

1. Who we are

YUNTUN STUDYSTUDIOS provides study-space information, educational content, partner programs, and online account services for learners and partners.

For privacy questions, contact us at yuntun_wp@yuntun-bj.com or call 4000-670-996.

2. Information we collect

Depending on how you use the service, we may collect:

  • Account identifiers: user ID and login provider records.
  • Phone number and SMS verification codes when you sign in with phone.
  • Google account information when you choose Google Sign-In (such as name, email address, and profile image made available by Google).
  • Browser / device fingerprint and visitor ID used to bind trusted browsers after first login.
  • Password credentials you set for fingerprint-based re-login (stored in hashed form by our auth backend).
  • Technical logs: IP address, browser type, timestamps, pages visited, and error diagnostics.
  • Cookies and similar technologies for session continuity and basic analytics.

3. How we use information

We use collected information only to operate and improve YUNTUN STUDYSTUDIOS, including to:

  • Authenticate users and maintain secure sessions.
  • Bind trusted browsers via fingerprint after a successful first login.
  • Provide profile, content, and partner-application features.
  • Prevent abuse, fraud, and unauthorized access.
  • Respond to support requests and meet legal obligations.
  • Measure basic product reliability and usage (non-advertising analytics where enabled).

4. Google Sign-In and Google APIs

If you sign in with Google, we request only the OAuth scopes needed for authentication and basic profile identity. We use Google account data solely to create or link your Yuntun account and to keep you signed in.

We do not sell Google user data. We do not use Google APIs to develop, improve, or provide AI-generated Non-Consensual Intimate Imagery (AI NCII), and we do not allow our services to be used for that purpose.

Google’s own processing is governed by Google’s Privacy Policy. You can revoke Google access at any time in your Google Account security settings.

5. Sharing of information

We do not sell personal information. We may share limited data with:

  • Infrastructure and messaging providers that process data on our behalf (hosting, SMS delivery, captcha).
  • Google, solely as needed to complete Google Sign-In.
  • Authorities when required by applicable law or to protect rights, safety, and security.

6. Retention

We retain account and security-related data for as long as your account remains active, or as needed to provide the service, resolve disputes, and comply with legal requirements. Technical logs are retained for a limited operational period and then deleted or anonymized.

7. Security

We apply reasonable technical and organizational measures to protect personal data, including encrypted transport (HTTPS), access controls, and hashed password storage for credentials we manage. No method of transmission or storage is 100% secure.

8. Your choices and rights

Subject to applicable law, you may request access, correction, or deletion of your personal information, or ask us to restrict certain processing. You may also stop using Google Sign-In and switch to another supported login method where available.

To exercise these rights, email yuntun_wp@yuntun-bj.com. We may need to verify your identity before fulfilling a request.

9. Children

Our online account services are intended for users who can form a valid agreement under applicable law. If you believe a child has provided personal information without appropriate consent, contact us and we will take reasonable steps to delete it.

10. Changes

We may update this Privacy Policy from time to time. The “Last updated” date at the top will change when we do. Continued use of the service after an update means you accept the revised policy.

Contact

YUNTUN STUDYSTUDIOS

Email: yuntun_wp@yuntun-bj.com

Phone: 4000-670-996

Website: https://www.yuntun-bj.com