Every system handling sensitive data needs security built in from design, not as a patch after launch.
Essential practices
- Data encryption in transit (HTTPS) and at rest
- Robust authentication with tokens and secure sessions
- Role-based access control
- Automatic backups and recovery plan
- Crítical action auditing
- Input validation to prevent SQL injection and XSS
Most breaches come from basic practices being skipped, not sophisticated hackers.
