What Is CCSK? A 2026 Guide for Cloud Security Professionals

Key takeaways

A Certificate of Cloud Security Knowledge (CCSK) showcases your knowledge of cloud security and your ability to perform key cloud security tasks.

• The CCSK exam has a pass rate of 62 percent, with an 80 percent required to pass the exam [1]. 

• The CCSK exam tests your knowledge across 12 domains, including cloud computing concepts, application security, data security, incident response, and identity and access management.

• You can prepare for the CCSK exam through independent study and online guided assessments on key topics in information technology (IT) and information security.

Learn more about CCSK certification, including its value, exam topic areas, and exam preparation tips. If you’re ready to embark on a career in IT, consider enrolling in IBM’s Information Technology (IT) and Cloud Fundamentals Specialization. You’ll have the opportunity to learn about software management, cloud computing, and software development in as little as two months. Upon completion, you’ll develop in-demand skills to showcase on your resume or LinkedIn profile.

What is CCSK certification?

CCSK is a widely recognized certificate developed by the Cloud Security Alliance (CSA). It represents the standard of knowledge required to work in cloud security. The test assesses your understanding of data encryption, cloud incident response, application security, security as a service (SecaaS), best practices for identity and access management (IAM), and secure technologies.

Because different companies vary in their technologies and specific security needs, you may need to complement the CCSK knowledge base with additional, job-specific training. However, the goal of the CCSK certificate is to represent the understanding required to work in cloud security for any company or platform. 

Do I need a CCSK to work in cloud security?

A CCSK is not legally required. However, many employers look for this certificate to verify a potential candidate's ability to perform essential cloud security tasks. Cloud security is a new and emerging field. Many employers and company executives still need to gain background knowledge in this area themselves. Screening candidates for a CCSK can make assessing the skill level of potential hires easier. If you are applying to a cloud security position without this credential, your employer could opt for another candidate with this certificate. 

Is CCSK certification worth it?

The CCSK covers the basics of strategic and tactical cloud security skills. The material for this certificate is vendor-neutral, meaning the skills should apply to any career path within cloud security. This is highly beneficial when entering the information security industry because you can work for most companies, regardless of their specific platforms and technologies. This expands your job opportunities and can make shifting between fields and companies much easier than if the certificate were vendor-specific.

You can demonstrate your proficiency in specialized skills.

When you take the CCSK, you are testing your strategic and tactical knowledge of cloud security. The deep focus on cloud security for this certificate will represent your in-depth knowledge of cloud architecture and information security, specifically in this domain. This can help you showcase to employers why you are the best candidate for the position and what extensive skills you have to offer the company.

You will meet the prerequisites for more advanced cloud security certifications.

Another benefit of the CCSK is that it provides a stepping stone for more advanced certificates, such as the Cloud Controls Matrix (CCM) and Security Trust Assurance Registry (STAR). This allows you room to grow within your career and level your knowledge to increase benefits, take on more responsibility, and progress within your company.

What is covered in CCSK?

When you take the CCSK exam, the material focuses on completing 12 topic domains over 120 minutes. There are 60 questions contained within the open-book exam, but the questions require you to think critically.

The material on the exam breaks down into 12 categories, some of which include:

• Cloud computing concepts 

• Application security

• Data security 

• Incident response

• Identity and access management 

Read more: Data Security: FAQ + Best Practices

Reference material for the CCSK exam

Much of the material from this exam comes from the CSA Security Guidance v.5, with additional material coming from the CSA Cloud Controls Matrix. When you're preparing for this exam, you'll want to make sure you review these materials and are comfortable with the knowledge inside. Many people consider the exam challenging, so taking the time to go through review materials and practice tests can help you prepare for the exam.

How hard is the CCSK exam?

The CCSK exam is challenging. It has a 62 percent passing rate [1]. However, there are many online resources you can use to prepare yourself for the exam successfully. You will need to score over 80 percent on the exam to pass, which includes 60 questions in 120 minutes. Reading through explanatory materials on the different concepts, completing practice questions, and taking timed practice exams can help you master the material and gauge your preparedness level. 

How long does it take to study for a CCSK?

The amount of time it takes to study for a CCSK depends on your current level of knowledge and how quickly you can pick up the material. If you have a strong technical background and find cloud security materials come intuitively to you, it may only take you a few weeks. If all the materials are new to you or you find it takes more time to learn them, allotting a few months of continual study may be necessary.

Tips for managing your study time to prepare for CCSK

The studying process can feel time-consuming, especially if you have other responsibilities outside of it. We recommend allotting a certain amount of time per day or week and monitoring your progression on the concepts. After a few weeks, you will start to understand how quickly you are going through the material and plan for future exams. If you have trouble self-studying, engaging with an online tutor or enrolling in a course can help you stay on track.

How much does the CCSK exam cost?

As of October 2025, the CCSK exam costs $445 for two attempts [2]. Typically, you are responsible for this expense. However, if you are getting this certificate for your current job, your employer may be willing to help with the cost.

How to prepare for the CCSK exam

When preparing for the CCSK exam, you have a few options. Finding the study method that best fits your lifestyle and preferences can help you stick to your study routine and maximize your efforts. The sections below outline three ways you can prepare yourself to pass the CCSK exam.

1. Independent study

If you're an independent learner, your best option might be to study on your own. This method requires a high level of self-motivation and continual monitoring of your own progress. Many online resources can help you understand the material and test yourself with questions. For example, you can download the CCSK v4 Exam Preparation Kit for an outline of the content of the exam and practice questions.

2. Guided study

If you're not confident in your background knowledge of cloud security concepts yet, consider taking some online classes to fill the gaps in your knowledge. Here are a few options to get you started with key concepts in the CCSK exam:

General cloud security concepts:

• IT Security: Defense Against the Digital Dark Arts by Google: You can use this course to learn about encryption algorithms and how you can use them to safeguard data. You'll earn a shareable certificate from Google upon completion of this course.

• System Issues in Cloud Computing Specialization by the Georgia Institute of Technology: Gain hands-on project-intensive experience in developing different layers of a cloud computing infrastructure with this course. You will earn a shareable certificate upon completion.

Vendor-specific cloud security concepts:

• Security in Google Cloud Specialization: This vendor-specific course covers mitigation methods for attacks at various points in a Google Cloud-based infrastructure. Learn about phishing attacks, distributed denial-of-service attacks, and more while also earning a certificate for your resume.

• Cloud Computing Security by the University of Colorado: Use this course to familiarize yourself with popular cloud security tools and systems. You'll learn how to create an AWS account, plan resources for your cloud systems, create and access AWS EC2 instances, and configure LAMP web services with MySQL database. You will earn a shareable certificate upon completion.

3. CCSK training

If you learn best in a guided environment, enrolling in CCSK training may be the right choice. Guided training is often a combination of lectures and labs where you learn concepts and then apply them to practice questions. Depending on the training, you may even have additional extensive exercises, such as securely bringing a practice organization into the cloud or encrypting data sets. A benefit of guided practices like CCSK training or online courses is that you will become part of a community of fellow students. This can provide a platform to ask questions, learn from one another, and build your professional network.

What's next? CCSK vs. CCSP

Once you complete your CCSK certificate and spend a few years working in cloud security, you might be ready to earn your CCSP certification. A key difference between these credentials is that the CCSK is a certificate focusing on cloud security, while the CCSP is a certification that covers a broad range of information security. It represents a senior level of experience.

The CCSP certificate is an excellent option should you want to further your qualifications and open new job opportunities. It requires five years of experience in information security and information technology (IT), which must include three years in information security and one year in one of the six domains tested on the exam. The CCSP certification is a requirement for some advanced professions, such as cloud administrators, cloud architects, cloud engineers, security architects, and related careers. 

Discover helpful resources on cloud security

Stay up to date on career trends and tips by subscribing to Career Chat, our LinkedIn newsletter. Then, explore these resources to broaden your cloud security knowledge:

• Stay informed: Cybersecurity Glossary: Key Terms and Definitions

• Read an insider story: Meet the IT Support Tech Advancing Toward a Cybersecurity Career

• Watch on YouTube: 5 Essential Cloud Computing Skills

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