Lovable, Cursor, Bolt, Replit, v0: a few sentences is all it takes to build a complete app these days. But who secures that app? The answer differs per tool — and it matters more than you think.
What is vibe coding again?
Vibe coding is building by describing what you want, instead of writing code yourself. You say “build a booking system with login and payments”, and the AI writes the code.
It works surprisingly well. But the AI builds what you ask for — not automatically what is safe. Much like a fast contractor can put up a house without locks on the doors, unless someone asks for them.
Read more about vibe coding and security to understand what a working preview does not show.
The best-known tools in a row
- Lovable — complete web apps from a chat, including database and login.
- Cursor — an AI code editor, mostly loved by people who can already program.
- Bolt and v0 — fast prototypes and interfaces from a description.
- Replit — build and run in the browser, popular with beginners too.
- Claude Code and similar agents — work from the terminal on existing projects.
What the tools do handle for you
Most platforms take care of the underlying infrastructure: encrypted connections, secured servers, login systems that meet modern standards. You usually don't need to worry about those.
Some tools also warn about obvious mistakes, for example when you put a secret key in your code.
What you must handle yourself
The big pitfall is in your settings. The AI sets up a database for you, but who can reach that data? That lives in rules that you (or the AI on your behalf) configure — and those are surprisingly often too permissive.
Think of: access rights on your database, secret keys that are accidentally visible, and functions anyone can call even though they were meant for logged-in users only.
If you use Supabase, review securing Supabase.
Our advice, whichever tool you use
- Check who can reach your data before going live — not after.
- Never put secret keys in code that visitors can see.
- Have your app scanned for the mistakes AIs often make; that is exactly what VibeShield is for.
- Test with a second account whether you can reach other people's data. If you can, anyone can.
Before launch, ask: is my app safe?
Frequently asked questions
Which vibe coding tool is the safest?
That is the wrong question. Every tool can produce safe apps and every tool can produce leaking apps — the difference is in how the settings are configured. You have to check those yourself, or have them checked, with every tool.
Doesn't the AI warn me about security problems itself?
Sometimes, in very obvious cases. But the AI is built to carry out your request, not to hold you back. Most access-rights mistakes are built in silently.
Do I need to know how to code to check this?
No. An automated scan like VibeShield checks the settings for you and explains in plain language what is wrong and how to fix it.