A centralized incident response team ensures consistent communication, coordination, and a unified approach to managing incidents across the organization.
"A centralized incident response team provides a consistent and coordinated approach to incident handling and ensures that management is kept informed."
- CISM Review Manual 15th Edition, Chapter 4: Incident Management, Section: Incident Response Organization Models*

Single sign-on (SSO) is a technology that allows users to access multiple applications or services with one set of credentials, such as a username and password. The primary advantage of SSO is that it increases the efficiency of access management, as it reduces the need for users to remember and enter multiple passwords for different applications or services. SSO also simplifies the user experience, as they can log in once and access multiple resources without having to switch between different windows or tabs. SSO can also improve the security of related applications, as it reduces the risk of password compromise or phishing attacks.
However, SSO does not strengthen user passwords or support multiple authentication mechanisms by itself. It is a complementary technology that enhances the security and convenience of access management. References = CISM Review Manual, 16th Edition, page 991 The primary advantage of single sign-on (SSO) is that it increases the efficiency of access management. With SSO, users only need to remember one set of credentials to access all of their applications, rather than having to remember multiple usernames and passwords for each application. This simplifies the user experience and helps to reduce the amount of time spent managing access to multiple applications. Additionally, SSO can also increase the security of related applications, as users are not sharing the same credentials across multiple applications, and it can also support multiple authentication mechanisms, such as biometric authentication.

The organization's vision and mission should be the PRIMARY basis for an information security strategy, as they define the purpose and direction of the organization and its information security needs. A comprehensive gap analysis is a tool to identify the current state and desired state of information security, and the actions needed to close the gap. Information security policies are the high-level statements of management's intent and expectations for information security, and are derived from the information security strategy. Audit and regulatory requirements are external factors that influence the information security strategy, but are not the primary basis for it. References = CISM Review Manual, 16th Edition, pages 17-181; CISM Review Questions, Answers & Explanations Manual, 10th Edition, page 782 The primary basis for an information security strategy should be the organization's vision and mission. The organization's vision and mission should be the foundation for the security strategy, and should inform and guide the security policies, procedures, and practices that are implemented. The results of a comprehensive gap analysis, information security policies, and audit and regulatory requirements should all be taken into consideration when developing the security strategy, but should not be the primary basis.

The first consideration when deciding to move to a cloud-based model should be data classification, because it helps the organization to identify the sensitivity, value, and criticality of the data that will be stored, processed, or transmitted in the cloud. Data classification can help the organization to determine the appropriate level of protection, encryption, and access control for the data, and to comply with the relevant legal, regulatory, and contractual requirements. Data classification can also help the organization to evaluate the suitability, compatibility, and trustworthiness of the cloud service provider and the cloud service model, and to negotiate the terms and conditions of the cloud service contract.
Storage in a shared environment, availability of the data, and physical location of the data are all important considerations when deciding to move to a cloud-based model, but they are not the first consideration. Storage in a shared environment can affect the security, privacy, and integrity of the data, as the data may be co- located with other customers' data, and may be subject to unauthorized access, modification, or deletion.
Availability of the data can affect the reliability, performance, and continuity of the data, as the data may be inaccessible, corrupted, or lost due to network failures, service outages, or disasters. Physical location of the data can affect the compliance, sovereignty, and jurisdiction of the data, as the data may be stored or transferred across different countries or regions, and may be subject to different laws, regulations, or policies.
However, these considerations depend on the data classification, as different types of data may have different levels of risk, impact, and expectation in the cloud environment. References = ISACA, CISM Review Manual, 16th Edition, 2020, pages 95-96, 99-100, 103-104, 107-108.
ISACA, CISM Review Questions, Answers & Explanations Database, 12th Edition, 2020, question ID 1031.