Privacy Policy

Last updated: September 27, 2025

1. Overview

At Quantum Signature, we are committed to safeguarding your privacy. This policy outlines how we collect, use, and protect personal data when you use our quantum cryptographic services (collectively "Services").

2. Information We Collect

We collect information to: authenticate, secure, and improve our quantum-resistant signature infrastructure.

  • Personal Data: Names, emails, and account credentials when you register.
  • Technical Data: IP addresses, browser types, and device fingerprints for service security.
  • Usage Data: Activity logs, API usage metrics, and session durations.
  • Encryption Data: Public keys and signature verification analytics.

3. Data Usage

Security

Protect against quantum threats using zero-knowledge verification protocols.

Operations

Optimize quantum-resistant infrastructure performance and integrity.

Legal

Comply with cryptographic regulations and security audits.

4. Data Retention

Technical data is purged immediately after authentication. Personal data is retained for 90 days post-account closure, then securely wiped using quantum-resistant shredding algorithms.

5. Data Protection

All data is protected with:

  • Lattice-based encryption
  • Hardware security modules with post-quantum key storage
  • Multi-party computation for identity verification

6. Your Rights

View Data

Access your encryption history and device registration logs.

Delete Data

Permanently remove account and cryptographic assets.

Transfer Data

Export cryptographic assets in standard quantum-resistant formats.

7. Contact

For privacy-related inquiries, contact our team or email privacy@quantum-sig.html.