Isaca Updated CISM Exam Questions and Answers by eddison

Comprehensive and Detailed Step-by-Step Explanation:

Recovering from ransomware requires backups that are unaffected by the ransomware attack. Here's why offline backups are most effective:

A. Online backup: These are connected to the network and may also be compromised during an attack.

B. Incremental backup: While efficient, incremental backups rely on previous backups and are typically stored online, making them vulnerable to ransomware.

C. Differential backup: Similar to incremental backups, these are not immune if stored online or on compromised systems.

D. Offline backup: This is the BEST choice as offline backups are stored in a location that is not connected to the network, preventing ransomware from encrypting them.

= Data owner is the best suited to determine how the information in a database should be classified, because data owner is the person who has the authority and responsibility for the data and its protection. Data owner is accountable for the business value, quality, integrity, and security of the data. Data owner also defines the data classification criteria and levels based on the data sensitivity, criticality, and regulatory requirements. Data owner assigns the data custodian and grants the data access rights to the data users. Data owner reviews and approves the data classification policies and procedures, and ensures the compliance with them.

References = CISM Review Manual, 16th Edition, Chapter 1: Information Security Governance, Section: Data Classification, page 331

= After a ransomware incident, the most important concern for the information security manager is to identify the root cause of the incident and prevent it from happening again. The root cause analysis (RCA) is a systematic process of finding and eliminating the underlying factors that led to the incident, such as vulnerabilities, misconfigurations, human errors, or malicious actions. Without performing a RCA, the organization may not be able to address the root cause and may face the same or similar incidents in the future, which could result in more damage, costs, and reputational loss. Therefore, the information security manager should prioritize the RCA over other concerns, such as meeting the SLA, RTO, or notification requirements, which are important but secondary to the RCA.

References = CISM Review Manual 15th Edition, page 254-2551; CISM Review Questions, Answers & Explanations Database - 12 Month Subscription, QID 4202