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Privacy Policy

Last Updated: March 2026

1. Information We Collect

Lumina collects minimal personal information necessary to facilitate anonymous connections. We collect your email address for authentication purposes and the interests/bios you provide to pair you with compatible pen pals.

2. Data Security & Row-Level Security

Your privacy is our mathematical priority. All messages and connections are protected using strict PostgreSQL Row-Level Security (RLS). Cryptographic rules ensure that only the authenticated sender and recipient can access the contents of a letter. No scraping or external reading is possible.

3. How We Use Data

Your interests and bio are strictly mathematically processed by our Algorithmic Matchmaker (using Jaccard Similarity and Full-Text Search) to generate a numeric compatibility score. We do not sell your data or train external AI models on your personal letters.