🔐 Digital Estate

隐私政策 / Privacy Policy

Last Updated: January 28, 2026
This Privacy Policy describes how Digital Estate collects, uses, stores, and protects your personal information.
1. Data Collection

Digital Estate follows the principle of data minimization and only collects necessary personal information:

  • Account Information: Username, email address (for registration and login)
  • Application Data: Asset information you create (end-to-end encrypted)
  • Emergency Contact Information: Emergency contact email and name you provide (for threshold cryptography recovery)

We do not collect the following information:

  • Your mnemonic phrase or encryption keys (generated and stored only on your local device)
  • Your asset plaintext data (all asset data is end-to-end encrypted)
  • Your precise geolocation
  • Your contacts or information from other apps on your device

Server Logs: To ensure service security and troubleshoot issues, our servers record basic access information, including request time, request path, and HTTP status code. These logs do not contain your personal identification information, device type, or app version, and are used solely for security monitoring and system maintenance. Logs are automatically cleaned up regularly and retained for a maximum of 30 days.

2. Data Encryption and Security

Digital Estate employs multiple layers of security measures to protect your data:

  • End-to-End Encryption: All asset data is encrypted on your device using AES-256-GCM. The server only stores ciphertext and cannot decrypt your data
  • Local Key Management: Encryption keys are protected using Android Keystore hardware security
  • Threshold Cryptography: Supports 2-of-2 Shamir Secret Sharing, splitting keys between you and the server
  • Secure Transmission: All network communication uses HTTPS encryption
  • Security Headers: Web interfaces implement strict Content Security Policy (CSP) and X-Frame-Options protection
3. Data Usage

We only use your data for the following purposes:

  • Providing and maintaining Digital Estate service functionality
  • Verifying your identity and protecting account security
  • Assisting emergency contacts in recovering your assets through threshold cryptography when you fail to check in for 7 consecutive days
  • Improving app performance and user experience (through anonymized data analysis)
  • Responding to your feedback and customer service requests
4. Data Storage and Retention
  • Encrypted Data: Asset ciphertext is permanently stored on the server until you actively delete your account
  • Account Information: Your username and email are stored on the server for authentication
  • Local Data: Mnemonic phrases, encryption keys, and other sensitive information are stored only on your local device
  • Data Deletion: You can delete your account at any time, and the server will permanently delete all your data
5. Third-Party Services

Digital Estate uses the following third-party services:

  • Server Hosting: Application servers are hosted on cloud service providers
  • Email Service: Uses SMTP services to send verification codes and notification emails
  • Analytics Services: May use anonymized analytics tools to improve app performance

All third-party services undergo security assessment and only process the minimum necessary data.

6. Data Sharing

We value your privacy and are committed to protecting your personal information. Our data sharing policy is as follows:

  • We Do Not Sell Personal Information: We do not sell, rent, or trade your personal information to third parties
  • Service Provider Sharing: We share minimal data only with necessary service providers to deliver our services:
    • Email service provider (SendGrid): for sending verification codes and notification emails
    • Cloud service providers: for server hosting and data storage
  • Legal Requirements: We may disclose your information when required by law or to protect our legal rights
  • Business Transfers: If our business is acquired or merged, your information may be transferred as part of the transaction

All third-party service providers undergo strict security assessments and commit to processing only the minimum necessary data.

7. User Rights

You have the following rights regarding your data:

  • Right to Access: View your personal data stored on the server
  • Right to Correction: Correct inaccurate or incomplete personal information
  • Right to Deletion: Delete your account and all related data
  • Right to Export: Export your asset data (requires decryption with mnemonic phrase)
  • Right to Withdraw Consent: Stop using the service and delete data at any time

To exercise these rights, please contact us using the information below.

8. Disclaimer
Important Notice:
Digital Estate is not an insurance or investment product and does not provide any financial or investment advice. Users are responsible for their own data backup and secure storage. The development team is not responsible for any data loss, asset loss, or security issues resulting from the use of this application.

By using this application, you acknowledge that you have read, understood, and agree to all terms of this Privacy Policy and Disclaimer.

9. Children's Privacy

This app is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13.

  • If we discover that we have inadvertently collected a child's personal information, we will take immediate steps to delete that information
  • If you are a parent and believe your child has provided us with personal information, please contact us using the information below, and we will assist in deleting the relevant data
  • Our service is designed and functions are not targeted at children, nor do we collect or market to children's information
10. Contact Us

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

  • Email: support@hello-my-dear.com
  • Project Repository: https://gitee.com/boot_1/digital_estate

We will respond to your request within 15 business days.