SAT20 Wallet Privacy Policy

1. Overview

This Privacy Policy describes how SAT20 Wallet (“we”, “our”, or “the App”) collects, uses, shares, and stores personal information from users of our website, browser extension, mobile application, or other services (collectively, the “Services”).

By using the Services, you agree to this Privacy Policy and our Terms of Service. If you do not agree with any part of it, please stop using the Services immediately.

2. Information We Collect

We may collect the following types of information:

  • Blockchain network data: publicly available addresses, transaction history, and asset information (excluding private keys or seed phrases).
  • Contact information: such as your email address (only when voluntarily provided).
  • Feedback and communications: information you provide when submitting inquiries, participating in surveys, or contacting customer support.
  • Usage data: including timestamps, feature clicks, page visit duration, etc.
  • Device information: such as browser type, version, and operating system.
  • Marketing preferences: with your consent, we may record your interactions with marketing emails (e.g., opens, clicks).

3. Cookie Usage

We may use cookies and similar technologies (such as local storage and pixel tags) within our website or application for the following purposes:

  • Maintain login sessions and user preferences;
  • Analyze user behavior to optimize service experience;
  • Provide personalized content and recommendations;
  • Measure site traffic and conversion performance.

You can disable or delete cookies via your browser settings, but doing so may affect certain functionalities of the Services.

4. Third-Party SDK Usage

Our Services may integrate third-party Software Development Kits (SDKs) to provide certain functionalities, such as analytics, crash reporting, or payment processing. Examples include but are not limited to:

  • Analytics SDKs (e.g., Google Analytics): for collecting visit data and user interactions.
  • Crash reporting SDKs (e.g., Sentry): for error logging and diagnostics.
  • Payment SDKs (e.g., third-party Bitcoin payment gateways): for deposits, withdrawals, or cross-chain transactions.

These SDKs may collect information such as device details and usage data. We limit their data collection to the minimum necessary and require compliance with applicable privacy regulations.

5. How We Use Information

We use collected information to:

  • Provide, maintain, and improve the Services;
  • Support cross-chain, channel, and asset management functions;
  • Respond to your inquiries and feedback;
  • Detect and prevent security threats or abuse;
  • Comply with legal requirements;
  • Conduct marketing and personalization with your consent.

6. Sharing of Information

We do not sell your personal information to third parties. We may share information:

  • With trusted affiliates or service providers;
  • In connection with a merger, acquisition, or asset transfer;
  • To comply with legal obligations or government requests.

7. Security and Retention

We take reasonable technical and administrative measures to protect your data, but absolute security cannot be guaranteed over the Internet. Data will be retained for the shortest period necessary to fulfill its intended purposes, unless extended retention is required by law.

8. Children's Privacy

Our Services are not intended for children under 16. If we discover that we have collected personal information from such individuals, we will promptly delete it.

9. GDPR and International User Rights

If you are located in the EU or other applicable jurisdictions, you have the right to request access, rectification, deletion, restriction, or objection to processing, as well as data portability. Contact us at support@sat20.org to exercise your rights.

9A. EU / EEA Specific Terms

(1) Lawful Bases for Processing

We process your personal data based on the following legal grounds:

  • Your explicit consent;
  • Necessity for the performance of a contract with you or to take steps at your request prior to entering into a contract;
  • Compliance with a legal obligation;
  • Protection of your vital interests;
  • Performance of a task carried out in the public interest or in the exercise of official authority;
  • Pursuit of our legitimate interests, provided such interests are not overridden by your fundamental rights and freedoms.

(2) Your Rights under GDPR

You have the right to:

  • Access your personal data we hold;
  • Rectify inaccurate or incomplete data;
  • Erase your personal data (“right to be forgotten”) where legally permissible;
  • Restrict processing of your data in certain circumstances;
  • Object to processing based on legitimate interests or direct marketing;
  • Data portability — receive your personal data in a structured, commonly used, machine-readable format and transfer it to another controller.

(3) International Data Transfers

Where your personal data is transferred outside the EU/EEA, we implement appropriate safeguards, such as the EU Standard Contractual Clauses (SCCs), to ensure your data receives equivalent protection.

(4) Data Protection Officer (DPO)

If you have any questions about your rights under the GDPR or our data processing practices, you may contact our Data Protection Officer at:

Email: dpo@sat20.org

(5) Right to Lodge a Complaint

If you believe we have infringed upon your GDPR rights, you have the right to lodge a complaint with the data protection authority (DPA) in your EU member state. A list of DPAs can be found here: https://edpb.europa.eu/about-edpb/about-edpb/members_en

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Significant changes will be indicated by updating the “Last Updated” date and, where appropriate, notifying you in advance. Continued use of the Services indicates your acceptance of the updated policy.

11. Contact Us

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

Email: support@sat20.org

Last Updated: August 29, 2025