SUPABASE SECURITY BEST PRACTICES (2025 GUIDE)

Summary from the TLDR InfoSec newsletter

This comprehensive guide addresses frequent security pitfalls seen in Supabase deployments, offering precise and practical solutions grounded in recent audits. It covers how components like authentication, database schemas, Edge Functions, storage, and CORS interact from a security perspective and how to secure them with simple, effective policies—such as “read-only by default”, automate audits, and revisit configurations as the platform evolves.