Supabase Security Basics Overview Supabase exposes a Postgres database directly to the internet via PostgREST. Every table without Row Level Security enabled is fully readable and writable by anyone with your project URL and anon key — both of which are public. This skill covers the three pillars of Supabase security: key separation (anon vs service role), RLS policy enforcement, and API surface hardening. Prerequisites - Supabase project created (local or hosted) with Dashboard access - installed ( ) - and environment variables configured - Basic understanding of SQL and Postgres Instruction…