Book Image

CISA – Certified Information Systems Auditor Study Guide

By : Hemang Doshi
Book Image

CISA – Certified Information Systems Auditor Study Guide

By: Hemang Doshi

Overview of this book

Are you looking to prepare for the CISA exam and understand the roles and responsibilities of an information systems (IS) auditor? The CISA - Certified Information Systems Auditor Study Guide is here to help you get started with CISA exam prep. This book covers all the five CISA domains in detail to help you pass the exam. You’ll start by getting up and running with the practical aspects of an information systems audit. The book then shows you how to govern and manage IT, before getting you up to speed with acquiring information systems. As you progress, you’ll gain knowledge of information systems operations and understand how to maintain business resilience, which will help you tackle various real-world business problems. Finally, you’ll be able to assist your organization in effectively protecting and controlling information systems with IT audit standards. By the end of this CISA book, you'll not only have covered the essential concepts and techniques you need to know to pass the CISA certification exam but also have the ability to apply them in the real world.
Table of Contents (19 chapters)
1
Section 1: Information System Auditing Process
4
Section 2: Governance and Management of IT
7
Section 3: Information Systems Acquisition, Development, and Implementation
10
Section 4: Information System Operations and Business Resilience
13
Section 5: Protection of Information Assets

Identity and access management

An IS auditor should review the logical access control of the organization with the prime objective of determining whether access is granted and controlled as per approved authorizations. As a CISA aspirant, you are expected to understand the concepts of identity and access management. Let's have a look at these concepts.

Logical access controls are a set of tools and protocols with the objective and purpose of the following:

  • Identification
  • Authentication
  • Authorization
  • Accountability

Access control categories

The following are the major categories of access control:

Type
Description
Mandatory access control (MAC) Control rules are governed by an approved policy. Users or data owners cannot modify the access role.
Discretionary access control (DAC) Control access can be activated or modified by the data owner as per their discretion.

MAC is considered more robust and stringent in terms of information security compared to DAC. To increase...