2 posts tagged with "security"

Over the past few months I've been using Claude Code intensively in my work and personal projects. It's not hype — it's an actual work tool. And like any tool, there's a right way to use it, there are traps, there are limits, and there are combinations with other things that change the game.

This article is an honest account. What worked, what didn't, what I learned the hard way, and what I'd tell any developer just starting out. If you want the marketing pitch of "AI will replace programmers," this article isn't for you. If you want to know how to get the most out of it without losing your mind, keep reading.

There's a type of bug that doesn't break the build, doesn't show up in the logs, doesn't land in Sentry, but kills your product overnight: user A opening the application and seeing — out of nowhere — user B's data. Transaction, balance, tax ID, address, whatever. And the worst part: in almost every project where I saw this happen, the problem wasn't "a bug" in the code. It was the total absence of RLS in the database.

Today I want to talk about Row Level Security, which is literally the wall that separates one user's data from another's — within the same table.