Most early-stage SaaS founders ship products built with Cursor or Replit Agent thinking their service is solid. But AI coding tools are built to make features work, not to take a beating.
So here's the bare minimum security stack you need:
-Security Headers. Just ask your AI for all the security headers your service needs.
-Rate Limiting lol, people always sleep on this. We recently blasted 1,000 automated requests at an AI-built SaaS site. Server shit the bed and started throwing 500s in no time.
-Proper Input Validation. Like, sending malformed input shouldn't nuke your app.
-Server-side Access Control. Your service needs to actually check access rules, otherwise you've got yourself an IDOR.
If you're missing any of these, you can always hit me up in DMs (I can help set it up for your service) or ask your ai agent.