Privacy Policy

Effective date: June 9, 2026 · Last updated: June 9, 2026

This Privacy Policy explains how Hyperbook ("we", "us", or "our") collects, uses, stores, and protects your personal information when you visit https://pi.hyperbook.com ("the Service"). By using the Service, you agree to the practices described in this policy.

1. Information We Collect

1.1 Information from Pi Network

When you authenticate via Pi Browser, we receive the following data from Pi Network:

• Pi User UID — unique identifier assigned by Pi Network
• Pi Username — your Pi Network display name

1.2 Payment Information

When you make a membership payment using Pi, we record:

• Payment ID and transaction ID (from Pi blockchain)
• Payment amount (Pi)
• Membership start and end dates

We do not store your Pi wallet's private keys or seed phrases.

1.3 Technical Data

• IP address and browser/device type (via server logs)
• Pages visited and timestamps

2. How We Use Your Information

• To verify your identity and process membership payments
• To manage your membership status and access
• To improve the Service and diagnose technical issues
• To comply with legal obligations

We do not use your data for advertising or sell it to third parties.

3. Legal Basis for Processing (GDPR)

For users in the European Economic Area (EEA), we process your data under the following legal bases:

• Contract performance — processing necessary to provide the membership service you requested
• Legitimate interests — maintaining service security and preventing fraud
• Legal obligation — complying with applicable laws

4. Data Sharing

We do not sell, rent, or share your personal data with third parties, except:

• Pi Network — payment verification is processed through Pi's API (minepi.com)
• Legal requirements — if required by law, court order, or government authority

5. Data Retention

We retain your data for as long as your membership is active, plus up to 12 months after account closure for legal and accounting purposes. Payment records may be retained longer as required by applicable law.

6. Data Security

We implement industry-standard technical and organizational measures to protect your data, including:

• HTTPS/TLS encryption for all data in transit
• Access controls limiting data access to authorized systems only
• Regular security reviews

7. Your Rights

7.1 GDPR Rights (EEA Users)

• Access — request a copy of your personal data
• Rectification — correct inaccurate data
• Erasure — request deletion of your data ("right to be forgotten")
• Restriction — limit how we process your data
• Portability — receive your data in a portable format
• Objection — object to processing based on legitimate interests

7.2 CCPA Rights (California Users)

• Know what personal information is collected and how it is used
• Request deletion of your personal information
• Opt out of the sale of personal information (we do not sell data)
• Non-discrimination for exercising your privacy rights

8. Cookies

The Service does not use tracking or advertising cookies. Only essential session-related browser storage may be used for authentication purposes.

9. Children's Privacy

The Service is not directed to individuals under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us for immediate deletion.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of the Service after changes constitutes acceptance of the revised policy.

11. Contact Us

For any privacy-related requests or questions, please contact us at:

• Email: moosjiny@hyperbook.com
• Website: https://pi.hyperbook.com