Key Supabase security practices: enable database security, use environment variables for secrets, add security headers, and scan before launch.
Follow these Supabase security best practices:
**1. Database Security** Enable and configure Row Level Security (Supabase) or Security Rules (Firebase). Test by querying as an unauthenticated user.
**2. Secret Management** Never hardcode API keys. Use environment variables and keep secrets server-side only.
**3. Authentication Hardening** - Require email verification - Set minimum password requirements - Implement rate limiting
**4. Security Headers** Configure CSP, HSTS, X-Frame-Options, and other headers in your hosting platform.
**5. Regular Scanning** Use VAS to scan your app before launch and after major changes.
of Lovable applications (170 out of 1,645) had exposed user data in the CVE-2025-48757 incident
Source: CVE-2025-48757 security advisory
of data breaches involve databases with misconfigured access controls
Source: Verizon Data Breach Investigations Report
average cost of a data breach in 2023
Source: IBM Cost of a Data Breach Report 2023
“Row Level Security is not optional for production applications. Without RLS, your anon key grants full public access to your database.”
“Service keys should never be used in the browser or exposed to customers. They bypass all Row Level Security policies.”
VAS scans for all the security issues mentioned above. Get a comprehensive security report in minutes.
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