Secure SDLC
Security across the lifecycle
Security is not a gate at the end — it is a set of practices woven through every phase, shifting problems left where they are cheapest to fix.
Practices by phase
| Phase | Key security practices |
|---|---|
| Requirements | Security requirements, abuse cases, data classification |
| Design | Threat modeling, secure design review, trust boundaries |
| Develop | Secure coding standards, SAST, secrets scanning, code review |
| Test | DAST, dependency (SCA) scanning, security test cases |
| Deploy | IaC scanning, signed artifacts, least-privilege pipelines |
| Operate | Monitoring, patching, incident response, feedback loop |
Shift left
A flaw caught in design is a conversation; the same flaw in production is an incident. Start with threat modeling in the design phase, then automate checks (SAST, SCA, IaC scanning) in your pipeline so every commit is evaluated.