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This course offers an in-depth exploration of information security auditing principles, tailored for professionals preparing for the CISA certification. Starting with an overview of frameworks, standards, and guidelines, you will understand their critical role in protecting information assets. The course outlines the responsibilities of IS auditors in evaluating security baselines and implementing effective data privacy practices. Key modules focus on physical and environmental controls, ensuring that you are equipped to audit diverse aspects of information systems security, from infrastructure protection to compliance requirements. As you progress, the course delves into access management and data protection strategies. You will learn about identity and access management principles, logical access controls, and common authorization issues that pose risks to information systems. Detailed discussions on audit logging, data loss prevention (DLP), and network infrastructure will provide you with the skills needed to monitor and protect sensitive information effectively. The course also addresses the auditing of applications within networked environments, helping you understand the complexities of securing interconnected systems. In the latter sections, the focus shifts to advanced topics such as cryptography, network security, and cloud computing. You will explore the fundamentals of encryption systems, including symmetric and asymmetric keys, and learn to apply cryptographic principles for robust information security. Modules on PKI, virtualization, and cloud environments will further enhance your ability to assess and mitigate risks in modern IT landscapes. Additionally, the course covers security testing techniques, network penetration testing, and the use of IDS/IPS tools, preparing you to perform comprehensive security audits. By the end of this course, you will have a solid understanding of information security auditing, ready to tackle the CISA exam and advance your career in cybersecurity. This course is designed for IT auditors, security professionals, and individuals preparing for the CISA certification. It is suitable for those with a basic understanding of information systems and security principles. No prior CISA experience is required, but familiarity with IT audit processes will be beneficial.