Implementing DevSecOps: A Practical Sequence for Secure Delivery

01

1. Map the current delivery lifecycle

Document how code moves from development to production, where infrastructure changes are made, which environments exist, what approvals occur, how secrets are handled and how teams recover from failed releases. This identifies where security controls can be added without guessing.

02

2. Define risk and ownership

• Identify critical applications, data and trust boundaries.
• Assign owners for application, platform, cloud and security findings.
• Define severity and response expectations before adding enforcement.
• Document exceptions and who can accept risk.

03

3. Strengthen source and dependency controls

Use reviewed source control, protected branches, credential hygiene and dependency visibility. Introduce automated checks with clear triage rules. The objective is not a maximum number of tools; it is early detection that teams can act on.

04

4. Add security to CI/CD and infrastructure delivery

• Static analysis where it provides useful signal.
• Dependency and software-composition checks.
• Container and image checks for containerised workloads.
• Infrastructure-as-code checks for cloud and platform configuration.
• Secret detection and controlled credential handling.
• Dynamic testing where a running environment and risk justify it.

05

5. Establish release evidence and rollback

A release process should make it possible to understand what changed, which controls ran, what exceptions were accepted and how to roll back. High-risk changes may need stronger gates than low-risk changes. Keep the policy explicit and version controlled.

06

6. Feed production learning back into engineering

Operational incidents, vulnerability findings, detection gaps and failed releases should improve future controls. This closes the loop between Secure SDLC, DevSecOps and production operations.