TL;DR
Bubble's privacy rules don't configure themselves. By default, data can be accessible to anyone. You'll need to set rules for every data type to control who can view, find, and modify records. Don't hide data in the UI and call it security. Always test as different user types.
Understanding Bubble Security
Bubble has solid security infrastructure: privacy rules at the database level, built-in user auth, HTTPS for all apps, and SOC 2 compliance. The catch is none of it is on by default. Bubble is built for speed, so the defaults lean permissive. You have to flip the switches yourself.
Privacy Rules: The Most Critical Setting
Privacy rules are Bubble's equivalent of row-level security:
What Privacy Rules Control
- View: Whether users can see this data in searches and displays
- Find: Whether users can locate this data via search or direct lookup
- Modify: Whether users can create, update, or delete records
Critical: Without privacy rules, your data may be accessible to anyone who knows how to make API calls. Always configure privacy rules for every data type containing sensitive information.
Common Privacy Rule Patterns
Most apps need two or three of these:
- User-owned data: Only the creator can view and modify (the most common pattern)
- Admin-only: Users with an admin role only
- Public: Anyone can view, but only the creator can modify
API Security
If you expose Bubble's Data API:
API Key Protection
- Generate unique API keys for each integration
- Store API keys securely, never in client-side code
- Rotate keys if compromised
- Disable API access if not needed
Workflow API Endpoints
- Require authentication for sensitive workflows
- Validate input parameters
- Consider rate limiting for public endpoints
Authentication Security
Password Requirements
- Require minimum password length
- Consider enabling password complexity rules
- Use Bubble's built-in password hashing
Session Management
- Configure appropriate session timeouts
- Enable logout functionality
- Consider multi-device session handling
Testing tip: Use Bubble's "Run as" feature to test your app as different users. Verify that users can only see and modify data they should have access to.
Common Security Mistakes
1. No Privacy Rules
Leaving privacy rules unconfigured exposes all data. Even if your UI doesn't show the data, it can be accessed via API.
2. UI-Only Security
Hiding elements in the UI doesn't prevent access. Users can still access data through browser dev tools or direct API calls.
3. Insecure Workflows
Workflows triggered from the page run with the current user's permissions, but backend workflows may have admin-level access.
4. Exposed Sensitive Fields
Don't store sensitive data in fields that are visible in searches. Use privacy rules to restrict field access.
Security Checklist
- Privacy rules configured for all data types
- User authentication required for sensitive pages
- API access disabled or properly secured
- Sensitive workflows require authentication
- Password requirements configured
- Testing completed as different user types
- Admin functions protected by role checks
Is Bubble.io secure for business applications?
Bubble can be secure when properly configured. The platform provides privacy rules, SSL encryption, and SOC 2 compliance. But many Bubble apps ship with security issues because privacy rules aren't on by default. You have to configure data access controls explicitly.
What are Bubble privacy rules?
Privacy rules control who can view, find, and modify data in your Bubble database. By default, data may be accessible. You must create rules to restrict access based on user authentication and ownership.
Can users see my Bubble app's data structure?
Yes, parts of your data structure are visible in browser developer tools. Don't rely on obscurity. Configure privacy rules properly regardless of whether your users seem technical enough to find the raw API.
Should I enable the Data API?
Only if you need it. If your app works entirely through Bubble's interface, disable the Data API to reduce attack surface. If you need API access, secure it properly with authentication and privacy rules.
Building with Bubble?
Make sure your no-code app is secure before launch.