Security best practices
What the exam tests
Security best practices cover secure development lifecycle, least privilege, platform hygiene, and monitoring. The exam expects judgment: which controls to apply before go-live and how to keep them effective after deployment.
Core rules
- Model threats early. Identify entry points: screens, exposed REST/SOAP methods, timers, and integrations. Decide authentication and authorization for each.
- Apply least privilege to IT users in LifeTime and Service Center, and separate build, deploy, and operate duties.
- Keep environments separated. Do not copy production data into development without masking; do not use production secrets in test.
- Remove or protect debug and test endpoints before deployment. Review exposed elements as part of release.
- Patch the platform and dependencies, monitor audit logs, and test with penetration testing or secure code review.
- Use defense in depth: input validation, output encoding, HTTPS, role checks, and logging that does not leak secrets.
Worked example
Before go-live, a reviewer finds an exposed REST method that returns a stack trace and accepts anonymous calls. The fix is to require authentication, return a generic error, log details server-side, and remove the debug branch. Reasoning: error detail helps attackers map the system; the endpoint is an entry point and needs the same controls as a screen.
Traps
- Giving every developer a LifeTime admin role.
- Relying on hidden UI or obscure URLs.
- Leaving sample users and default accounts active.
- Treating security as a one-time pre-launch checklist.