(ISC)2 CSSLP Practice Exam with Explanation 2025 (Updated)

The CSSLP (Certified Secure Software Lifecycle Professional) certification from (ISC)2 is a highly sought-after credential for professionals focused on application security within the software development lifecycle (SDLC). This certification validates leading application security skills and demonstrates advanced technical expertise in authentication, authorization, and auditing throughout the entire SDLC.

Demonstrate your proficiency in software assurance, application access control, and secure coding to meet the growing demands of today's cybersecurity landscape. Companies actively seek Certified Secure Software Lifecycle Professionals (CSSLP) to safeguard their digital assets. With the increasing reliance on web applications, virtual environments, and mobile platforms, skilled CSSLPs are crucial for mitigating threats targeting web-based applications.

CSSLP Certification Requirements:

To qualify for the CSSLP certification, you must meet the experience requirements:

• Option 1: A minimum of four years of cumulative paid full-time software development lifecycle (SDLC) professional work experience across the eight domains of the (ISC)2 CSSLP CBK.
• Option 2: Three years of cumulative paid full-time SDLC experience with a four-year degree or regional equivalent in computer science, information technology (IT), or a related field, covering the eight domains of the CSSLP CBK.

CSSLP Exam Domains:

The CSSLP exam assesses your knowledge across eight key domains:

• Secure Software Concepts: Fundamental principles of secure software development.
• Secure Software Requirements: Gathering and analyzing secure requirements.
• Secure Software Architecture and Design: Designing secure software systems.
• Secure Software Implementation: Implementing secure coding practices.
• Secure Software Testing: Performing effective security testing.
• Secure Software Lifecycle Management: Managing security throughout the SDLC.
• Secure Software Deployment, Operations, Maintenance: Ensuring secure deployment and ongoing maintenance.
• Secure Software Supply Chain: Securing the software supply chain.

Note: Exam content was updated in September 2025.