CycleCore PQ — Privacy Policy

Effective: February 21, 2026  |  Last updated: February 21, 2026

1. What We Collect

DataPurposeRetention
Email addressAccount identity, billing, service alertsUntil account deletion
Name (optional)PersonalizationUntil account deletion
Password hashAuthentication (bcrypt, never stored in plaintext)Until account deletion
API usage countsRate limiting, billingRolling 30-day window
IP address (demo only)Demo rate limitingIn-memory only, cleared on restart
Payment identifierPayment processingUntil account deletion

2. What We Do NOT Collect

3. Cryptographic Keys

Your Dilithium3 and Kyber768 key pairs are generated server-side and stored in our database. Private keys are associated with your account and used only to process your API requests. We are working on client-side key generation and encrypted-at-rest storage.

4. Third-Party Services

We use a small number of third-party providers for payment processing, transactional email, and network infrastructure (TLS termination, DDoS protection). These providers receive only the minimum data necessary to perform their function. We do not sell, share, or transfer your data to anyone else.

5. Your Rights

Email [email protected] to:

6. Security

We use bcrypt password hashing, constant-time comparisons, TLS in transit, and NIST-standardized cryptographic algorithms. API keys are hashed before storage.

7. Contact

[email protected]