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ISC2 Certified Information Systems Security Professional ✓ Updated May 2026

Information Systems Security Engineering Professional

Exam Code: ISSEP
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About the ISSEP Exam

The Information Systems Security Engineering Professional (ISSEP) exam, offered by ISC2 under the Certified Information Systems Security Professional (CISSP) certification, is a specialized concentration focused on the engineering aspects of information security. Exam code ISSEP validates a candidate's ability to integrate security into systems and software development life cycles, ensuring that security is not an afterthought but a foundational component. This exam is designed for experienced security professionals who work on designing, building, and maintaining secure systems, particularly in government, defense, and critical infrastructure sectors where rigorous security engineering practices are mandated.

Unlike the core CISSP, which covers a broad range of security domains, the ISSEP concentration dives deep into systems security engineering principles, including the use of the National Institute of Standards and Technology (NIST) Special Publication 800-160 and related frameworks. It emphasizes risk management, security requirements analysis, and the integration of security controls into system architectures. Real-world use cases include securing complex systems like cloud environments, industrial control systems, and large-scale enterprise networks, where engineers must balance functionality with robust security measures to protect against advanced threats.

By earning the ISSEP credential, professionals demonstrate a mastery of applying security engineering concepts to real-world projects, making them invaluable in roles that require both technical depth and strategic insight. This certification is particularly relevant in industries facing stringent regulatory compliance, such as healthcare, finance, and government contracting. It enhances career prospects by validating specialized skills that go beyond general security management, positioning holders as experts capable of designing resilient systems from the ground up. For organizations, hiring ISSEP-certified individuals ensures that security engineering best practices are embedded in every phase of system development.

Who Should Take the ISSEP Exam?

The ISSEP exam is intended for experienced cybersecurity professionals, such as security engineers, systems architects, and senior security analysts, who have at least five years of cumulative paid work experience in two or more of the eight CISSP domains. Candidates should hold the CISSP certification or be eligible to earn it concurrently, as ISSEP is a concentration. Typical job roles include Information Systems Security Engineer, Security Architect, and Lead Systems Engineer, particularly in government agencies or defense contractors.

Topics Covered in ISSEP

📊
Systems Security Engineering Fundamentals
📜
Risk Management Framework (RMF) Implementation
💡
Security Requirements Definition and Analysis
🛡️
System Architecture and Design for Security
🏗️
Security Control Selection and Implementation
🔧
Verification and Validation of Security Controls
⚖️
Lifecycle Support and Continuous Monitoring
🎯
NIST SP 800-160 and Related Standards

Preparation Tips for ISSEP

Study NIST SP 800-160, Volume 1, thoroughly, as it is the foundational document for systems security engineering concepts tested in the ISSEP exam.
Focus on the Risk Management Framework (RMF) steps from NIST SP 800-37, including categorization, control selection, and continuous monitoring, as these are core to the exam.
Practice applying security engineering principles to real-world scenarios, such as designing a secure system for a cloud-based application or a critical infrastructure network.
Review the CISSP Common Body of Knowledge (CBK) for security engineering domain, but prioritize the ISSEP-specific materials from ISC2's official study guide.
Join study groups or forums focused on ISSEP to discuss complex topics like security requirements traceability and verification methods with peers.

Frequently Asked Questions — ISSEP

What is the prerequisite for taking the ISSEP exam?

To take the ISSEP exam, you must hold the CISSP certification or have at least five years of cumulative paid work experience in two or more of the eight CISSP domains. If you do not yet have CISSP, you can attempt both exams, but CISSP must be earned before ISSEP is awarded. ISC2 also requires endorsement from a current ISC2 member within nine months of passing the exam.

How does ISSEP differ from the core CISSP exam?

The core CISSP covers eight broad security domains, including security engineering, but at a generalist level. ISSEP is a concentration that dives deep into the systems security engineering domain, focusing on integrating security into system development lifecycles, using frameworks like NIST SP 800-160, and applying the Risk Management Framework. It is more technical and engineering-focused than the managerial aspects of CISSP.

What study materials are recommended for the ISSEP exam?

ISC2 provides an official ISSEP study guide and practice tests. Key external resources include NIST SP 800-160 (Volume 1 and 2), NIST SP 800-37 for RMF, and the Systems Security Engineering (SSE) CBK. Many candidates also use third-party training courses and online question banks, such as those with 220 practice Q&As, to simulate the exam environment.

How many questions are in the ExamsTree ISSEP study guide?
The ExamsTree ISSEP PDF study guide contains 220+ practice questions with detailed answer explanations, all mapped to the official ISC2 exam objectives.

Why Choose ExamsTree?

ExamsTree ISSEP Study Guide is developed by experienced certification professionals with deep knowledge of ISC2 technologies. Our team thoroughly researches each exam domain to provide comprehensive, accurate coverage.

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Exam Details
Vendor ISC2
Questions 220+
Format PDF
Updated 5/24/2026
Cert Certified Information Systems Security Professional
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