Home / GuidesSupabase security guides Supabase gives you a database, an auth system, and a public API in about a minute — and Lovable, Bolt.new, Replit and coding agents will accept that offer on your behalf. These are the ways the result goes wrong in production: what each failure looks like from the outside, and which signal catches it.
Researching the platform itself? Explore the directory of companies using Supabase in production .
Supabase security The failures that come from the platform itself — the boundary RLS draws, the logs that expire, and the API surfaces that answer to anyone holding a key.
Supabase RLS setup: secure the table, then prove the policy Set up Supabase Row Level Security correctly, test anon and authenticated access, avoid service-key bypasses, and monitor production policy failures. Every account takeover starts in your auth logs Credential stuffing, password-spraying and OAuth abuse all show up in Supabase Auth logs before they succeed. What the signals look like and how to alert on them. Your Supabase logs expire. Your incidents don't. What Supabase analytics buckets actually measure, how long logs are retained on each plan, and how to keep a security history longer than the retention window. Supabase audit logs: what they record—and what they miss A current guide to Supabase Platform Audit Logs, Auth Audit Logs, Logs Explorer, pgAudit, retention, and tracking who changed a database row. Supabase API security: protect every public route to your data Secure the Supabase Data API, Edge Functions, Realtime, and Storage with grants, RLS, private channels, safe keys, and continuous monitoring. Supabase security best practices for production startups A practical Supabase security checklist for startups: RLS, grants, API keys, Auth, Storage, Edge Functions, backups, team access, and monitoring. Supabase Security Advisor: a strong configuration safety net Learn what Supabase Security Advisor checks, how its database lints find insecure configuration, when to rerun it, and where runtime monitoring still matters. Defencecore vs Supabase Security Advisor: two different security jobs Compare Supabase Security Advisor configuration checks with Defencecore continuous attack monitoring, incident evidence, and suspicious-access detection. A Supabase anon key in the browser is not the breach The Supabase anon key is public by design. Learn what it can access, how RLS protects data, which keys must stay secret, and what to monitor. Checking Supabase logs yourself versus Defencecore Compare manual Supabase log review with continuous Defencecore monitoring across Postgres, Auth, API, Storage, Realtime, and Edge Functions. Supabase versus self-hosted Postgres security Compare Supabase with self-hosted Postgres across patching, backups, network security, Auth, APIs, monitoring, incident response, and operations. Supabase vs Firebase: two opposite ways to be exposed Supabase RLS filters rows silently; Firestore Rules reject whole queries. Which is more secure, how each one fails, and what changes for Supabase on 30 Oct 2026. Vibe coding platforms Lovable, Bolt.new, Replit and coding agents all write your schema and your policies for you. Each one gets it wrong in its own specific, repeatable way.
Your AI wrote the code. Nobody wrote the policies. Five security failures repeat in every AI-built app — leaked keys, RLS never enabled, UI-only auth, public buckets, agents with prod access. Audit yours. Are Lovable websites and apps secure? Are Lovable websites and apps secure? Learn how the Lovable AI app builder works with Supabase, what its security tools catch, and what to test before launch. Your API keys are in the build. Go look. Bolt scaffolds Vite, and Vite compiles every VITE_ variable straight into your bundle. That, open Edge Functions and no rate limits is where Bolt apps actually leak. Claude Code and Supabase MCP: a secure setup Connect Claude Code or Cursor to Supabase MCP safely with project scoping, read-only mode, limited tools, prompt-injection controls, and monitoring. The agent had production credentials. That's the whole story. An agent wiped a production database during a code freeze, then reported success. The guardrails got fixed. The setup that caused it is probably still yours. Stop reading. Start watching. Connect a Supabase project and Defencecore reads its logs, opens incidents when a rule matches, and shows the evidence behind each one.
Start monitoring for $29 ↗