By RUGERO Tesla ( @404Saint ) The methodology matters more than the target Most recon write-ups focus on the finding. This one focuses on the process. The target here is a Supabase project I own. Controlled lab, no real user data. I gave myself only what an attacker would realistically have: the project URL and the anon key sitting in the frontend bundle. No dashboard access. No schema knowledge. No tools beyond curl and a small Python script. The goal wasn't to find a vulnerability. It was to document what passive enumeration and error-based inference actually look like when you execute them methodically, step by step. The same reasoning drives this walkthrough as drives my ICS/OT reconnaissance work: observe first, infer from behavior, reconstruct what you can't see directly, never touch what you don't have to. The target is different. The methodology is the same. Step 0: What you start with Every Supabase project exposes two things in the frontend by default: the project URL and the anon key.…