Validating the authenticity of the patch is the first step in patch management procedures when receiving an emergency security patch, as it helps to ensure that the patch is genuine and not malicious. Validating the authenticity of the patch can be done by verifying the source, signature, checksum, or certificate of the patch, and comparing it with the information provided by the software vendor or manufacturer. Installing an unverified patch may introduce malware, compromise the system, or cause unexpected errors or conflicts.
References = CISM Review Manual 2022, page 3131; CISM Exam Content Outline, Domain 4, Task 4.42; Practical Patch Management and Mitigation1; Vulnerability and patch management in the CISSP exam3

Before drafting or enforcing policies, the first step is to evaluate the risks posed by employee use of social media. This may include data leakage, reputational damage, phishing, and legal liability.
Once risks are identified and understood in the organization's context, policies can be developed that specifically address those risks. Acting prematurely without a risk assessment can lead to overly restrictive or insufficient policies.
"Security policies should be risk-driven. Understanding potential threats and impacts is the foundation for effective policy creation."
- CISM Review Manual 15th Edition, Chapter 1: Information Security Governance, Section: Risk-Based Policy Development*

A security information and event management (SIEM) system is a type of detective control because it monitors and analyzes the security events or logs from different sources or systems, and detects any anomalies or incidents that may indicate a security breach or compromise. A preventive control is a type of control that prevents or blocks any unauthorized or malicious activity or access from occurring. A deterrent control is a type of control that discourages or warns any potential attackers or intruders from attempting any unauthorized or malicious activity or access. A corrective control is a type of control that restores or repairs any damage or disruption caused by an unauthorized or malicious activity or access. References: https://www.
isaca.org/resources/isaca-journal/issues/2017/volume-6/the-value-of-penetration-testing https://www.isaca.org
/resources/isaca-journal/issues/2016/volume-5/security-scanning-versus-penetration-testing

A preventive control is a type of control that aims to prevent or reduce the occurrence or impact of potential adverse events that can affect the organization's objectives and performance. Preventive controls are proactive measures that are implemented before an incident happens, and they are designed to address the root causes or sources of risk. Preventive controls can also help the organization to comply with the relevant laws, regulations, standards, and best practices regarding information security1.
An example of a preventive control is a redundant power supply, which is a backup or alternative source of power that can be used in case of a power outage or failure. A redundant power supply can reduce the business risk associated with critical system outages, which can result from power disruptions caused by natural disasters, technical faults, human errors, or malicious attacks. A redundant power supply can provide the following benefits for information security2:
* Maintain the availability and continuity of the critical systems and services that depend on power, such as servers, databases, networks, or applications. A redundant power supply can ensure that the critical systems and services can operate normally or resume quickly after a power outage or failure, minimizing the downtime and data loss that can affect the organization's operations, customers, or reputation.
* Protect the integrity and reliability of the critical systems and data that are stored or processed by the power-dependent devices, such as computers, hard drives, or memory cards. A redundant power supply can prevent or reduce the damage or corruption of the critical systems and data that can be caused by sudden or unexpected power fluctuations, surges, or interruptions, which can compromise the accuracy, completeness, or consistency of the information.
* Enhance the resilience and redundancy of the power infrastructure and network that supports the critical systems and services. A redundant power supply can provide an alternative or backup route for power delivery and distribution, which can increase the flexibility and adaptability of the power infrastructure and network to cope with different scenarios or conditions of power supply or demand.
The other options are not the type of control that is being considered by the organization. A corrective control is a type of control that aims to restore or recover the normal state or function of the affected systems or processes after an incident has occurred. A corrective control is a reactive measure that is implemented during or after an incident, and it is designed to address the consequences or impacts of risk. A corrective control can also help the organization to learn from the incident and improve its information security practices1. An example of a corrective control is a backup or restore system, which is a method of creating and restoring copies of the system or data that have been lost or damaged due to an incident.
A detective control is a type of control that aims to identify or discover the occurrence or existence of an incident or a deviation from the expected or desired state or behavior of the systems or processes. A detective control is a monitoring or auditing measure that is implemented during or after an incident, and it is designed to provide information or evidence of risk. A detective control can also help the organization to analyze or investigate the incident and determine the root cause or source of risk1. An example of a detective control is a log or alert system, which is a tool of recording or reporting the activities or events that have occurred or are occurring within the systems or processes.
A deterrent control is a type of control that aims to discourage or dissuade the potential perpetrators or sources of risk from initiating or continuing an incident or an attack. A deterrent control is a psychological or behavioral measure that is implemented before or during an incident, and it is designed to influence or manipulate the motivation or intention of risk. A deterrent control can also help the organization to reduce the likelihood or frequency of incidents or attacks1. An example of a deterrent control is a warning or notification system, which is a method of communicating or displaying the consequences or penalties of violating the information security policies or rules. References = Risk Control Techniques: Preventive, Corrective, Directive, And ..., Learn Different types of Security Controls in CISSP - Eduonix Blog

The corporate culture of an organization is the set of values, beliefs, norms, and behaviors that shape how the organization operates and interacts with its stakeholders. The corporate culture can have a significant impact on an organization's information security governance mode, which is the way the organization establishes, implements, monitors, and evaluates its information security policies, standards, and objectives. A strong information security governance mode requires a supportive corporate culture that fosters a shared vision, commitment, and accountability for information security among all levels of the organization. A supportive corporate culture can also help to overcome resistance to change, promote collaboration and communication, encourage innovation and learning, and enhance trust and confidence in information security12. References = CISM Review Manual (Digital Version), Chapter 1: Information Security Governance CISM Review Manual (Print Version), Chapter 1: Information Security Governance