Obtaining input from business management is the best way to enable the development of a successful IT strategy focused on business risk mitigation, because it helps to align and integrate the IT objectives and activities with the business goals and priorities. An IT strategy is a plan that defines how IT supports and enables the organization's vision, mission, and strategy. A business risk mitigation is a process that aims to reduce or eliminate the risks that may affect the achievement of the business objectives or expectations.
Obtaining input from business management is the best way to ensure that the IT strategy is relevant, realistic, and responsive to the business needs and challenges, and that the IT risks are identified, assessed, and managed in accordance with the business risk appetite and tolerance. Providing risk awareness training for business units, understanding the business controls currently in place, and conducting a business impact analysis (BIA) are all useful ways to support the development of an IT strategy focused on business risk mitigation, but they are not the best way, as they do not directly involve the input and feedback from business management. References = Risk and Information Systems Control Study Manual, Chapter 2, Section 2.1.1, page 37

Implementing an emergency change authorization process is the best control for an organization that allows programmers to change production systems in emergency situations, because it helps to ensure that the changes are justified, approved, documented, and tested before they are implemented, and that they are monitored and reviewed after they are implemented. An emergency change is a change that is required to resolve or prevent a critical issue or incident that may affect the availability, performance, or security of the production systems. A production system is a system that is used to support or enable the operational or business functions or processes of the organization. An emergency change authorization process is a process that defines the roles and responsibilities, criteria and procedures, and tools and techniques for managing and controlling the emergency changes. Implementing an emergency change authorization process is the best control, as it helps to minimize the risks and impacts of the emergency changes, and to maintain the integrity and reliability of the production systems. Periodically reviewing operator logs, limiting the number of super users, and reviewing the programmers' emergency change reports are all possible controls for an organization that allows programmers to change production systems in emergency situations, but they are not the best control, as they do not provide a comprehensive and consistent approach to the emergency change management. References = Risk and Information Systems Control Study Manual, Chapter 5, Section 5.4.1, page 208

KRIs provide measurable indicators that flag when risks exceed predefined thresholds, enabling swift and effective risk response. This supports theMonitoring and Reportingfunction in risk management, ensuring risks are managed proactively.

Lack of common understanding of the organization's risk culture is the greatest barrier to achieving the initiative's objectives, because it hinders the alignment and integration of risk management across the organization. Risk culture is the set of shared values, beliefs, and behaviors that influence how risk is perceived and managed in an organization. A risk universe is a comprehensive and structured representation of all the sources and types of risk that an organization faces. Developing a risk universe requires a common understanding of the organization's risk culture, as it affects the risk appetite, tolerance, and strategy of the organization. Lack of cross-functional risk assessment workshops, lack of quantitative methods to aggregate the total risk exposure, and lack of an integrated risk management system are all challenges that may affect thedevelopment of a risk universe, but they are not the greatest barrier, as they can be overcome with appropriate tools and techniques. References = Risk and Information Systems Control Study Manual, Chapter
2, Section 2.2.1, page 44

Zero-day malware is malware that exploits unknown and unprotected vulnerabilities. This novel malware is difficult to detect and defend against, making zero-day attacks a significant threat to enterprise cybersecurity1. The best way to detect zero-day malware on an end user's workstation is to use file integrity monitoring, which is a technique that monitors and alerts on changes to files and directories that may indicate a malware infection or compromise2. By using file integrity monitoring, the end user can detect zero-day malware that may alter or damage the files or directories on their workstation, and take appropriate actions to remove or isolate the malware. File integrity monitoring can also help to prevent the spread of zero-day malware to other systems or networks, and to restore the integrity and availability of the affected files or directories. Antivirus program, database activity monitoring, and firewall log monitoring are not the best ways to detect zero-day malware on an end user's workstation, as they are not as effective or reliable as file integrity monitoring. Antivirus program is a software that scans and removes known malware from a system or network3. Antivirus program can help to protect the end user's workstation from common or known malware, but it may not be able to detect zero-day malware that does not have a signature or a pattern that matches the antivirus program's database. Database activity monitoring is a technique that monitors and audits the activities and transactions on a database, such as queries, updates, or deletions4. Database activity monitoring can help to protect the end user's database from unauthorized or malicious access or modification, but it may not be able to detect zero-day malware that does not target or affect the database. Firewall log monitoring is a technique that monitors and analyzes the logs generated by a firewall, which is a device or software that filters and controls the incoming and outgoing network traffic based on predefined rules. Firewall log monitoring can help to protect the end user's workstation from external or internal network attacks, but it may not be able to detect zero-day malwarethat bypasses or evades the firewall rules or that originates from the workstation itself. References = 1: What is Zero Day Malware? - Check Point Software2: File Integrity Monitoring - an overview | ScienceDirect Topics3: Antivirus Software - an overview
| ScienceDirect Topics4: Database Activity Monitoring - an overview | ScienceDirect Topics : [Firewall Log Analysis - an overview | ScienceDirect Topics] : [Risk and Information Systems Control Study Manual, Chapter 5: Information Systems Control Design and Implementation, Section 5.1: Control Design, pp. 233-
235.] : [Risk and Information Systems Control Study Manual, Chapter 5: Information Systems Control Design and Implementation, Section 5.2: Control Implementation, pp. 243-245.] : [Risk and Information Systems Control Study Manual, Chapter 5: Information Systems Control Design and Implementation, Section 5.3:
Control Monitoring and Maintenance, pp. 251-253.] : [Zero-day attack detection: a systematic literature review | Artificial Intelligence Review] : [Zero-day Attacks Detection and Prevention Methods | Apriorit]