DevSecOps: Security From the Start
2 Introduction
1 Traditional DevOps focused on speed and collaboration.
2 Security was often an afterthought—plugged in late in the SDLC.
3 Enter DevSecOps: integrating security from Day 1.
3 What is DevSecOps?
1 Definition: A cultural and engineering approach that integrates security practices within the DevOps process.
2 “Shift left” mindset: Address security early and often.
3 Goal: Deliver secure software faster and more reliably.
4 Core Principles
1 Automation of security processes
2 Collaboration across dev, ops, and security teams
3 Continuous Monitoring and feedback loops
4 Early Detection of vulnerabilities
5 Compliance as Code
5 DevSecOps Lifecycle
1 Plan: Threat modeling & risk assessments
2 Develop: Secure coding standards, SAST
3 Build: Dependency scanning, automated tests
4 Test: DAST, container scanning, fuzzing
5 Release: Infrastructure as Code (IaC) checks
6 Deploy: Runtime protection, secrets management
7 Monitor: Log analysis, anomaly detection, SIEM integration
6 Tools That Empower DevSecOps
1 Code Analysis: SonarQube, Checkmarx
2 CI/CD Security: GitHub Actions with security gates, GitLab Security Dashboards
3 Container Security: Trivy, Aqua, Anchore
4 IaC Security: Checkov, tfsec
5 Secrets Management: HashiCorp Vault, AWS Secrets Manager
7 Benefits
1 Reduced risk and exposure
2 Faster time-to-market without sacrificing safety
3 Improved team alignment
4 Compliance is baked in, not bolted on
8 Challenges
1 Culture shift and resistance to change
2 Tool sprawl and integration complexity
3 Skill gaps in security knowledge for devs and ops
4 Maintaining speed while enforcing security
9 Best Practices
1 Start small: pick one area (e.g., SAST in CI)
2 Train developers in secure coding
3 Use policy-as-code to enforce standards
4 Make security visible and measurable
Conclusion
Security isn’t just the security team’s job anymore.
DevSecOps puts security where it belongs: at the heart of the development lifecycle.
Secure early, secure often.
