SaaS Security Checklist: Before You Go Live
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EngineeringMay 2, 20265 min read

SaaS Security Checklist: Before You Go Live

We had a security audit once. It wasn't pretty. Here's the checklist.

The Audit

A client required SOC 2 compliance.

We had an audit. It wasn't pretty.

Here's the checklist we now use.


Authentication

  • Password hashing (bcrypt, not MD5)
  • Password requirements enforced
  • Rate limiting on login
  • Account lockout after failures
  • Session timeout

Authorization

  • Users can only access their data
  • Role-based access control
  • Admin actions require verification
  • API keys properly scoped

Data Protection

  • HTTPS everywhere
  • Database encryption at rest
  • Sensitive data encrypted
  • No secrets in code
  • Environment variables for config

Input Validation

  • All user input validated
  • SQL injection prevented
  • XSS prevented
  • CSRF tokens on forms
  • File upload validation

Monitoring

  • Failed login attempts logged
  • Admin actions logged
  • Error monitoring (Sentry)
  • Uptime monitoring
  • Alerting for anomalies

Compliance

  • GDPR if EU users
  • Data export capability
  • Data deletion capability
  • Privacy policy
  • Terms of service

The Honest Take

Security isn't optional.

Build it in. Audit it.

It's cheaper to fix early.

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