I will audit and fix your firebase firestore security rules

Open or weak Firebase security rules are the most common way apps leak user data. I'll review your Firestore and/or Realtime Database rules, find what a stranger could read or write, and lock it down.

In my own production app I wrote rules that validate every write on the server: field names and types, value ranges, ownership and membership. I verified them with 24 automated allow/deny test scenarios, and integrated Firebase App Check with Play Integrity.

What you get:

• A plain-English report of each risk, ranked by severity
• - Fixed, tested rules you can deploy (Standard and Premium)
• - The test scenarios I used, so you can re-check after future changes
• - App Check setup (Premium)

I only need your rules files or Viewer access to your Firebase project. I never need your passwords or private keys, and I never touch your data.