CISSP Domain 8: Software Development Security
Domain 8.0: Software Development Security · 10% of the exam
Where governance meets the line of code: all 5 objectives (8.1–8.5), from integrating security into the SDLC and securing the development ecosystem through assessing software security effectiveness, evaluating acquired software, and the secure coding and API practices that decide whether a control exists or does not.
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Domain 8.0 is worth 10% of the CISSP exam. Walk in having mastered it, not hoping it doesn't come up.
Every objective, nothing extra
Built line by line from the official ISC2 CISSP objectives 8.1–8.5: 20 in-depth topics with worked scenarios and exam tips, in a 81-page guide you'll actually finish.
60 exam-style questions
Every question comes with instant feedback and a full explanation, so a wrong answer teaches you as much as a right one.
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This is the actual opening of Module 8.1, Security in the SDLC, not marketing copy. If you like how it teaches, the rest of the guide reads the same way.
Understand and integrate security in the Software Development Life Cycle
Methodologies, maturity models, the security activity that belongs in each phase, and why the phase matters more than the activity.
Julian Vasquez joined Aurora as application security lead into a team shipping the customs platform twice a day. The previous security model was a penetration test before each quarterly release, which had made sense when there had been quarterly releases. Integrating security into a pipeline that deploys every few hours is a different problem, and it is the one this domain is actually about.
Development methodologies
| Methodology | Characteristics | Security implication |
|---|---|---|
| Waterfall | Sequential phases with gates: requirements, design, implementation, verification, maintenance. | Security requirements can be captured comprehensively up front; late change is very expensive, so anything missed in requirements is missed for a long time. |
| Agile | Iterative, working software each sprint, requirements evolve. | Security must be in the definition of done and in the backlog as acceptance criteria, or it never fits into a sprint. |
| DevOps | Development and operations unified; continuous integration and delivery; infrastructure as code. | Change velocity outruns manual review entirely; automation is the only workable control. |
| DevSecOps | DevOps with security as a shared responsibility automated into the pipeline. | Security gates run as code: dependency scanning, SAST, secrets detection, policy checks — fast enough not to be bypassed. |
| Spiral | Iterative, explicitly risk-driven; each loop covers objectives, risk analysis, development and planning. | Risk analysis is a first-class phase, which suits high-assurance work. |
| Scaled Agile Framework | Coordinates Agile across many teams and programmes. | Security must be represented at the programme level or it fragments across teams. |
| Rapid application development / prototyping | Fast iteration toward user feedback. | Prototypes reaching production without security work is the characteristic failure. |
A defect found in requirements costs a conversation. The same defect in design costs a diagram. In code it costs a commit. In testing it costs a cycle. In production it costs a release, an incident and possibly a regulatory notification. The exam consistently prefers the answer that moves security activity earlier, which is why threat modeling belongs in design and security requirements belong in requirements.
Security activity by phase
| Phase | Security activity |
|---|---|
| Requirements | Security and privacy requirements derived from classification, regulation, contract and risk; abuse and misuse cases; a defined risk acceptance path. |
| Design | Threat modeling, trust boundary definition, secure design principles, architecture review, cryptographic design. |
| Implementation | Secure coding standards, peer review, SAST, secrets detection, dependency scanning, protected repository and pipeline. |
| Verification | DAST, IAST, fuzzing, security unit and integration tests, penetration testing for significant releases, coverage analysis. |
| Deployment | Hardened configuration, secrets provisioned from a manager, deployment gates, signed artifacts. |
| Operations and maintenance | Monitoring, patching including dependencies, periodic reassessment, and vulnerability intake from external reporters. |
| Disposal | Data migration or destruction, credential revocation, and the retirement checklist from objective 3.10. |
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Try 3 sample questions
Pulled straight from the guide's 60-question bank. Tap an answer for instant feedback and the explanation.
From module 8.1 · Security in the SDLC
1. Which maturity model is descriptive, reporting activities observed across participating organizations?
From module 8.2 · Development ecosystem controls
1. A secret is committed to a repository and then removed in a later commit. What must happen?
From module 8.3 · Assessing software security
1. Which metric most directly measures whether a software security programme is working?
57 more questions like these are waiting inside.
What's inside
- 20 in-depth topics across 5 modules, mapped to objectives 8.1–8.5
- 60 exam-style practice questions with instant feedback
- Full answer key explaining why every distractor is wrong
- Broken object-level authorization: the most common serious API flaw
- Why the CI/CD pipeline needs production-grade protection
- Complete CISSP acronym & key-term reference
- 81-page downloadable PDF for offline study and printing
- Lifetime updates as the exam evolves
The modules, mapped to the objectives
- 8.112 Qs
Security in the SDLC
Understand and integrate security in the Software Development Life Cycle (SDLC)
Waterfall, Agile, DevOps, DevSecOpsSpiral & SAFeCMMI, SAMM & BSIMMSecurity activity by phaseShift left economicsIntegrated product team - 8.212 Qs
Development ecosystem controls
Identify and apply security controls in development ecosystems
Memory-safe vs. unsafe languagesDependencies, SBOM & provenanceCI/CD pipeline as a targetRepository & branch protectionSecrets in historySAST, DAST, IAST & SCA in pipeline - 8.312 Qs
Assessing software security
Assess the effectiveness of software security
Change auditing & loggingApplication audit trailsSoftware risk analysisDefect escape rateRemediation metricsVerification vs. validation - 8.412 Qs
Acquired software security
Assess security impact of acquired software
COTS assessment evidenceOpen source project healthThird-party development termsManaged services & subprocessorsCloud shared responsibilityAssess before contract - 8.512 Qs
Secure coding guidelines
Define and apply secure coding guidelines and standards
Injection & parameterisationBroken access control & BOLADeserialisation & memory safetyTOCTOU & race conditionsAPI security concernsSoftware-defined security
About the author
Chris Rees
Professional information technologist with 25+ years in IT and the author of 51 certification training courses, 50+ live on Pluralsight, rated 4.6/5 across more than 2,000 reviews. This guide is that same exam-focused teaching, in a format you can finish.
More about ChrisSitting the whole exam? Get the Complete CISSP Collection.
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