Beyond the Vibe: Why “Secure by Default” is the Only Way to Build in 2026

Short summary

The author discovered an API vulnerability in a low-code platform where permissive defaults exposed all user data. Secure-by-Default architecture using Row Level Security with Deny-by-Default makes security the path of least resistance, preventing silent breaches. Developers using AI agents should mandate secure patterns through prompts, code review, and persistent security rubrics.

• •Permissive defaults in low-code platforms create silent data breaches—the author found full CRUD access to a judo seminar's user database
• •Deny-by-Default + Row Level Security makes secure architecture the path of least resistance for developers
• •When using AI agents (Claude Code, Cursor, Replit Agent), enforce security-first prompts and manual API audits via Postman

Generated with AI, which can make mistakes.