Guide
How to secure a SaaS before launch
To secure a SaaS before launch, lock the database with access rules, keep every secret key on the server, set security headers, and rotate anything that leaked, then verify it all from your live URL. These are the openings that turn a launch-day traffic spike into a data breach.
The pre-launch list
- Database access rules on, scoped per user.
- Secret keys server-side only, never in the browser bundle.
- Security headers set on every response.
- No public .env or source maps.
- Rotate any secret that was ever exposed.
These are the openings that turn a launch spike into a breach.
Verify before the traffic arrives
Launch traffic is when attackers and automated scanners notice you. Confirm the list is done on the deployed app, not just in your code. Scan the live URL with Plaintext and fix anything it flags before you send the announcement. The first scan is free.
Frequently asked
What security should I do before launching a SaaS?
Lock the database with access rules, keep secret keys on the server, set security headers, remove any public .env or source maps, and rotate leaked secrets. Then verify from the live URL, since the deployed app is what attackers see.
What is the most common launch security mistake?
An open database or a secret key left in the browser. Both expose real user data, both are easy to miss when shipping fast, and both are visible from the public URL, so a scan catches them before launch.
Check your own app in about a minute. Paste your URL and Plaintext reads the shipped JavaScript, the public endpoints, and the database rules for the exact holes AI code generators leave open. The first scan is free.
Scan my app