Strengthening Libre: Security and Optimization Updates

[Sascha]

I’ve been working on improving Libre, my anonymous social experiment, and just rolled out several important security and optimization changes:


1.Anonymous Authentication via Firebase – every user now has a unique anonymous session, preventing abuse while keeping the experience frictionless.
2. Sensitive Keys Removed – tokens (e.g., ipinfo) are no longer exposed on the client side.
3. Advanced Anti-Abuse Filtering – stronger detection for offensive content, spam, and injection attempts (XSS, SQLi, flooding).
4. Client + Server Validations – strict sanitization, input validation, and hardened Firebase Firestore rules.
5. No UX changes – users still just tap “Start being Libre” to join.
6. Scalability & Resilience – better protection against bots and malicious traffic.




Libre stays simple for users but is now much stronger behind the scenes. Feedback is welcome.

Try it here:

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