Privacy Policy for HyperSchool GG Extension

Last Updated: January 14, 2026

Introduction

HyperSchool GG Extension ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you use our Chrome browser extension.

Information We Collect

Data Stored Locally

The extension stores the following information locally in your browser:

• User Key: A unique identifier derived from your PokerCraft account (nickname, brandId, brandAlias, brandName)
• API Token: Your authorization token from PokerCraft
• User Key Update Timestamp: The time when your user key was last updated

Data Transmission

The extension only transmits data to:

• my.pokercraft.com: To retrieve your user information (only when you are logged in)
• hyperschool.ru: To exchange encrypted data with HyperSchool platform

How We Use Your Information

• Authorization Status: To monitor and display your login status
• Secure Communication: To generate DPoP tokens for secure API communication
• Platform Integration: To enable data exchange between PokerCraft and HyperSchool platforms

Data Storage

• All data is stored locally in your browser using Chrome's local storage API
• No data is transmitted to third-party servers
• No data is stored on our servers
• Data is automatically cleared after 2 hours of inactivity

Data Sharing

We do not share, sell, or transmit your data to any third parties.

The extension only communicates with:

• my.pokercraft.com (to verify your authorization)
• hyperschool.ru (for platform integration)

Your Rights

You have the right to:

• Delete your data: Clear all extension data through Chrome's extension settings
• Disable the extension: Turn off the extension at any time
• Review stored data: Check what data is stored via Chrome DevTools

How to Delete Your Data

1. Open Chrome Extensions page (chrome://extensions/)
2. Find "HyperSchool GG Extension"
3. Click "Remove" to delete the extension and all its data

Alternatively:

1. Open Chrome DevTools (F12)
2. Go to Application → Storage → Local Storage
3. Find and clear data for the extension

Security

• All data is encrypted using AES-CBC encryption
• DPoP tokens are generated using ECDSA cryptography
• Communication with servers uses HTTPS protocol
• No sensitive data is transmitted in plain text

Permissions Explanation

The extension requires the following permissions:

• tabs: To interact with PokerCraft website tabs
• storage: To store authorization data locally in your browser
• webRequest: To intercept and process API requests from PokerCraft (only for my.pokercraft.com/api/user)

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by:

• Updating the "Last Updated" date
• Posting the new Privacy Policy in the extension's description

Contact Us

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

• Email: support@hypoerschool.ru
• Website: https://hyperschool.ru

Compliance

This extension complies with:

• Chrome Web Store Developer Program Policies
• General Data Protection Regulation (GDPR) principles
• User privacy best practices

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