Choose a credential for the work you want to do
DevSecOps spans secure pipelines, cloud identity and runtime security. These credentials cover different slices of that work; none alone proves that you can design a secure software delivery process.
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Use CKS for Kubernetes security after CKA, and AWS Security Specialty for experienced AWS security work. CKA is a foundation option when cluster administration is your main gap, rather than a security credential in its own right.
Costs are listed in US dollars before local taxes and currency conversion; discounts, bundles and retakes can change the final price. Difficulty and “worth doing” verdicts are our editorial assessments, not provider guarantees. Recommended experience is not a formal prerequisite unless stated.
Scroll horizontally to compare all columns. Follow an exam link for its current terms.
| Provider | Exam / course name | Cost | Difficulty | Validity | Target experience | Free training options | Worth doing? |
|---|---|---|---|---|---|---|---|
| Linux Foundation / CNCF | Certified Kubernetes Security Specialist (CKS)Professional certification | US$445 exam-only list price; CKA cost separate | Advanced; hands-on | 2 years Renewal policy | Must have passed CKA before attempting CKS; practical cluster-security experience strongly advised. | Kubernetes security documentationFree security documentation and the provider's linked curriculum; practise hardening and investigating a local cluster. | Worth considering for cluster security specialists |
| AWS | AWS Certified Security – SpecialtyProfessional certification | US$300 exam | Advanced | 3 years Renewal policy | Provider targets 5 years of IT security and 2+ years securing AWS workloads; no prior certification is required. | AWS documentation and exam guideFree reading and exam guides; paid labs and full practice exams are separate. | Worth considering for experienced AWS security practitioners |
| Linux Foundation / CNCF | Certified Kubernetes Administrator (CKA)Professional certification | US$445 exam-only list price | Intermediate–advanced; hands-on | 2 years for newly earned credentials Renewal policy | Best after practical Linux, networking and Kubernetes administration experience; this readiness guidance is editorial. | Kubernetes BasicsFree tutorial and documentation; build a local practice cluster. The paid exam is separate. | Foundation, not a DevSecOps endpoint |
Worth considering for cluster security specialists
Worth doing when: Useful when you actively secure Kubernetes workloads and can practise hardening, access control and runtime investigation. Its practical tasks fit that narrow specialization.
Skip or delay when: Delay if you have not passed CKA or your environment does not use Kubernetes. Budget for the prerequisite as well as this exam.
Worth considering for experienced AWS security practitioners
Worth doing when: A good fit when your role involves AWS identity, encryption, logging and security design. It provides a focused cloud-security syllabus.
Skip or delay when: Not a substitute for secure coding or pipeline experience. Beginners should practise least privilege and incident investigation before paying.
Foundation, not a DevSecOps endpoint
Worth doing when: Worth doing when cluster operations knowledge is blocking progress toward Kubernetes security. Understanding normal cluster behavior helps you identify unsafe behavior.
Skip or delay when: Skip if you already have strong Kubernetes operations evidence and do not need it as the CKS prerequisite. It does not cover the entire secure development lifecycle.
Add dependency and image checks to a sample pipeline, restrict deployment identity, document an exception process and show how a risky release is blocked without exposing secrets.
Explain the problem, your decision, your test and the result. A badge can support that story; it does not establish job readiness or guarantee a salary.
