Information Systems Security Engineering Professional (ISSEP) Practice Tests

ISSEP treats security as an engineering discipline carried across the full system lifecycle. The August 2025 outline begins with Systems Security Engineering Foundations (24%) and Security Planning and Engineering (22%), then tests risk, implementation and verification, and secure operations through disposal. Together the two largest domains account for 46%.

The exam has 125 items, allows three hours, and requires 700 out of 1,000 points. CISSP is one eligibility route, not an absolute prerequisite: a CISSP holder needs two years of focused experience, while the standalone route requires seven years across at least two ISSEP domains, with a possible one-year waiver.

This 850-question ISSEP practice bank is built for repeated work across all five domains. Start with 30 free questions and practice tracing a security need into requirements, architecture, implementation, verification evidence, operational change, and eventual disposal rather than memorizing controls without their engineering context.

Information Systems Security Engineering Professional (ISSEP) is an advanced ISC2 certification for practitioners who treat cybersecurity as an engineering discipline across the system lifecycle. Developed with the U.S. National Security Agency, it covers requirements, architecture, implementation decisions, verification evidence, authorization support, operational change, and secure disposal.

The current outline took effect August 1, 2025. Systems Security Engineering Foundations is the largest domain at 24%, followed by Security Planning and Engineering at 22%. ISSEP is available through both a CISSP-based pathway and a standalone experience pathway.

ISSEP is designed for experienced security engineers, architects, systems engineers, and other practitioners responsible for integrating security into complex systems from concept through disposal. Its current objectives span Zero Trust, supply-chain risk, DevSecOps, model-based systems engineering, verification, and lifecycle operations.

It is not exclusively a CISSP concentration. Experienced security engineers can pursue ISSEP through ISC2's standalone seven-year route even when they do not hold CISSP.

A CISSP in good standing can qualify with two years of cumulative full-time experience in one or more current ISSEP domains. The standalone route requires seven years of cumulative full-time experience across at least two current domains.

For the standalone route, a relevant bachelor's or master's degree or an approved additional credential can waive one year, and only one year can be waived. Qualifying part-time work and internships may count. Candidates who pass without the required experience may apply for Associate of ISC2 status and have up to eight years to earn the experience.

The ISSEP exam has 125 items, allows three hours, and includes multiple-choice and advanced item types. It is offered in English at Pearson Testing Centers and requires 700 out of 1,000 points to pass.

ISC2 currently lists regional standard prices of $599 in the Americas and many other regions, €575.04 in EMEA, and £485.19 in the United Kingdom. Taxes and currency depend on the examination location.

ISSEP verifies advanced security-engineering knowledge and qualifying experience through either the CISSP-based or standalone route. ISC2 states that the credential is ANAB-accredited under ISO/IEC 17024 and recognized in the U.S. Department of Defense 8140 framework, although suitability for a particular role still depends on that role's requirements.

Maintenance differs by pathway: an ISSEP holder with CISSP needs 60 ISSEP-related Group A CPE credits per three-year cycle, counted within the CISSP total; a holder without CISSP needs 140 Group A credits. ISC2 currently charges one $135 annual member maintenance fee regardless of the number of qualifying certifications held.