Privacy Policy

v3.9 BETA

Last Updated: February 8, 2026

1. Overview

ChessBlock is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our blockchain-based chess gaming platform.

2. Information We Collect

2.1 Blockchain Data

When you connect your TON wallet and play games, the following information is recorded on the public TON blockchain:

Your wallet address
Game transactions (stakes, wins, losses)
Game outcomes and moves (stored on-chain)
Smart contract interactions

Note: Blockchain data is publicly accessible and permanent. ChessBlock does not control this data once recorded on-chain.

2.2 Technical Data

Our servers may collect:

IP addresses (for security and analytics)
Browser type and version
Device information
Access times and dates
Pages viewed and interactions

2.3 Telegram Data (Mini App)

If you use ChessBlock via Telegram:

Telegram user ID (for authentication)
Username (if public)
Profile photo (if public)

3. Information We DO NOT Collect

ChessBlock does not collect:

❌ Email addresses (no account registration required)
❌ Passwords (wallet-based authentication only)
❌ Private keys or seed phrases (we never have access)
❌ Personal identification documents
❌ Credit card or payment information

4. How We Use Your Information

We use collected information to:

Facilitate blockchain game transactions
Display game history and statistics
Prevent fraud and abuse
Improve platform performance and user experience
Comply with legal obligations

5. Data Sharing & Third Parties

5.1 Blockchain Networks

All game data is shared with the TON blockchain network by design. This is necessary for decentralized operation.

5.2 Wallet Providers

When you connect a wallet (TON Wallet, Tonkeeper, etc.), you interact directly with that provider. We do not control their privacy practices.

5.3 Analytics Services

We may use anonymous analytics tools to understand platform usage. These services may collect aggregated, non-personal data.

5.4 No Data Sales

We do not sell, rent, or trade your personal information to third parties for marketing purposes.

6. Cookies & Local Storage

ChessBlock may use cookies and browser local storage to:

Remember your wallet connection preferences
Maintain game state during sessions
Improve website performance

You can disable cookies in your browser settings, but this may affect functionality.

7. Data Security

We implement industry-standard security measures:

HTTPS encryption for all connections
Secure server infrastructure
Regular security audits
Limited access to backend systems

However: No system is 100% secure. You are responsible for securing your own wallet and private keys.

8. Data Retention

Blockchain data: Permanent and immutable (cannot be deleted)
Server logs: Retained for 90 days, then automatically deleted
Session data: Cleared when you disconnect your wallet

9. Your Rights

Depending on your jurisdiction, you may have rights to:

Access your data (view blockchain transactions publicly)
Correct inaccurate data (limited due to blockchain immutability)
Request data deletion (limited to off-chain data only)
Object to data processing

Note: Blockchain data cannot be deleted once recorded on-chain.

10. Children's Privacy

ChessBlock is not intended for users under 18 years old. We do not knowingly collect data from minors. If we discover such data, we will delete it promptly.

11. International Users

ChessBlock operates globally. Your data may be processed in different jurisdictions. By using the Service, you consent to international data transfers.

12. Changes to This Policy

We may update this Privacy Policy periodically. The "Last Updated" date will reflect the most recent changes. Continued use after updates constitutes acceptance.

13. Compliance

ChessBlock aims to comply with:

GDPR (European Union)
CCPA (California, USA)
Other applicable data protection laws

14. Contact Us

For privacy-related questions or requests:

Telegram: @Chess_Block_Bot
Website: chessblock.com

By using ChessBlock, you acknowledge that you have read and understood this Privacy Policy.

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