Common signs: test mode rules, Firebase warnings and open databases. Usual causes: allow read, write: if true and missing ownership checks. What we do: review and test every rule as each user. What you get: secure, tested rules and a report.
Our Firebase security rules audit checks whether your Firestore, Realtime Database and Storage rules really protect your users' data. Firebase apps talk to the database directly from the browser or phone, so the rules are your security. A Codersarts engineer reviews every rule, tests it as each type of user with the Firebase emulator, and fixes what's open. Fixed price from $29 with 24h delivery.
Firebase Rules Audit at a Glance
Item | Details |
|---|---|
Starting price | $29 for a quick rules check |
Delivery | 24 hours for a check, 1 day for audit and fixes |
Covers | Cloud Firestore, Realtime Database and Cloud Storage rules |
Testing | Firebase Emulator Suite with tests for each role |
Also checks | App Check, API key restrictions and Cloud Functions access |
What you get | Secure, tested rules and a written report |
Revisions | One revision round included |
What Are Firebase Security Rules?
Firebase Security Rules decide who can read and write each document, path or file in Cloud Firestore, Realtime Database and Cloud Storage. Because Firebase apps connect to the database directly, without your own server in between, these rules are often the only thing protecting user data.
Rules left in test mode, or written as allow read, write: if true, let anyone with your project's public config read or change everything.
Signs Your Firebase Rules Need an Audit
Firebase emailed you that your database or storage is publicly accessible
Rules still say allow read, write: if true or have a test-mode date
Any logged-in user can read any document
Users can edit fields they shouldn't, such as role or balance
Your app was built quickly or with AI tools
Why Firebase Rules End Up Open
Test mode never switched off
Projects start with open rules for development, and they reach production unchanged.
Logged-in means allowed
Rules check request.auth != null but not whether the user owns the data.
No field validation
Users can write any field, including roles, prices or credits.
Storage forgotten
Cloud Storage has separate rules that often stay open.
Quick Checks You Can Try First
Open the Rules tab for Firestore, Realtime Database and Storage and look for if true.
Check that every rule compares request.auth.uid with the document owner.
Make sure users can't write role or admin fields on their own profile.
Restrict your Firebase API key to your app's domains and bundle IDs in Google Cloud.
If the problem remains, our engineers take it from there.
How We Audit and Fix Your Rules
Map data. We map collections, paths and storage buckets to who should access them.
Review. We read every rule for Firestore, Realtime Database and Storage.
Test. We write emulator tests for each role: anonymous, user, owner and admin.
Fix. We rewrite rules with ownership checks and field validation.
Verify. We run the tests again and confirm the app still works.
Harden. We check App Check, API key restrictions and Cloud Functions.
What You Get
A rule-by-rule report of what was open
Fixed rules ready to deploy
Emulator tests you can keep running
Field validation for sensitive data
API key and App Check recommendations
Example result (illustrative)
A Firebase chat app had Firestore rules that let any logged-in user read every conversation and edit their own role field. We added membership checks, blocked role changes, closed an open Storage bucket and delivered 22 emulator tests.
What Is Included and Not Included
Included | Not included |
|---|---|
One Firebase project | Several unrelated projects |
Firestore, Realtime Database and Storage rules | Restructuring your database |
Emulator test suite | Building new app features |
One revision round | Ongoing monitoring |
Pricing for a Firebase Rules Audit
Package | Best for | Starting at | Delivery |
|---|---|---|---|
Quick rules check | Find open rules and test mode | $29 | 24 hours |
Audit and fix | All rules fixed with emulator tests | $199 | 1 day |
Full Firebase review | Rules, Functions, App Check and data model | $599 | 3 days |
You get a fixed quote after we review your setup. You approve the scope before any payment.
Who This Is For
Firebase app founders who got a security warning
Mobile app teams using Firestore directly
Apps built with FlutterFlow or AI builders
Startups preparing to launch or raise
Agencies delivering Firebase apps
What We Need From You
Read access to your Firebase project, or your rules files
A description of who should access each collection
Test accounts for each role
Your app repository, if available
Code and data privacy
We sign an NDA on request, work with read-only access wherever possible, and never keep copies of your data after delivery. You own all code, reports and notes.
Key Terms Explained
Security Rules: Firebase's access rules for databases and storage
Test mode: temporary open rules for development
request.auth: information about the signed-in user inside a rule
App Check: a Firebase feature that helps ensure requests come from your real app
Common Mistakes We Avoid
Extending the test-mode date instead of writing real rules
Checking only that a user is logged in
Securing Firestore but leaving Storage open
Deploying rule changes without tests
Need More Than One Fix?
Need wider database security across Firebase and other databases? See Database Security.
Related Tasks
Supabase RLS Audit & Fix for Supabase projects
Login & Auth Hardening for Firebase Auth settings
Leaked API Keys & Secrets Cleanup if admin credentials were exposed
Frequently Asked Questions
Are Firebase API keys secret?
No. They identify your project and are meant to be public. Your data is protected by security rules, so the rules must be correct.
What does Firebase test mode do?
It allows anyone to read and write your database until a set date. It must be replaced with real rules before launch.
Can you test rules without touching production?
Yes. We test with the Firebase Emulator Suite before deploying anything.
Do you cover Realtime Database too?
Yes, along with Cloud Firestore and Cloud Storage.
Lock Down Your Firebase Data
Open rules are one of the most common causes of mobile app data leaks. Share your project and roles, and a Codersarts engineer will test and fix every rule.