Explanation
Secure Sockets Layer (SSL) is a cryptographic protocol that provides secure communications providing end point authentication and communications privacy over the Internet. In typical use, all data transmitted between the customer and the business are, therefore, encrypted by the business's web server and remain confidential.
SSH File Transfer Protocol (SFTP) is a network protocol that provides file transfer and manipulation functionality over any reliable data stream. It is typically used with the SSH-2 protocol to provide secure file transfer. IP Security (IPSec) is a standardized framework for securing Internet Protocol (IP) communications by encrypting and/or authenticating each IP packet in a data stream. There are two modes of IPSec operation:
transport mode and tunnel mode. Secure/Multipurpose Internet Mail Extensions (S/MIME) is a standard for public key encryption and signing of e-mail encapsulated in MIME; it is not a web transaction protocol.

Explanation
The most important consideration when establishing information security policies for an organization is to ensure that senior management supports the policies. Senior management support is essential for the successful implementation and enforcement of information security policies, as it demonstrates the commitment and accountability of the organization's leadership to information security. Senior management support also helps to allocate adequate resources, establish clear roles and responsibilities, and promote a security-aware culture within the organization. Without senior management support, information security policies may not be aligned with the organization's goals and objectives, may not be communicated and disseminated effectively, and may not be followed or enforced consistently.
Job descriptions that include requirements to read security policies are a way of ensuring that employees are aware of their security obligations, but they are not the most important consideration when establishing information security policies. The policies should be relevant and applicable to the employees' roles and functions, and should be reinforced by regular training and awareness programs.
The policies should be updated periodically to reflect the changes in the organization's environment, risks, and requirements, but updating them annually may not be sufficient or necessary. The frequency of updating the policies should depend on the nature and impact of the changes, and should be determined by a defined policy review process.
The policies should be aligned with industry best practices, standards, and frameworks, but this is not the most important consideration when establishing information security policies. The policies should also be customized and tailored to the organization's specific context, needs, and expectations, and should be consistent with the organization's vision, mission, and values. References = ISACA, CISM Review Manual, 16th Edition, 2020, pages 37-38.
ISACA, CISM Review Questions, Answers & Explanations Database, 12th Edition, 2020, question ID
1009.

Explanation
The impact of noncompliance on the organization's risk profile is the MOST important information for the information security manager to communicate to senior management, because it helps them understand the potential consequences of not adhering to the established controls and the need for corrective actions.
Noncompliance may expose the organization to increased threats, vulnerabilities, and losses, as well as legal, regulatory, and contractual liabilities.
References =
CISM Review Manual, 16th Edition, ISACA, 2020, p. 84: "The information security manager should report on information security risk, including noncompliance and changes in information risk, to key stakeholders to facilitate the risk management decision-making process." CISM Review Manual, 16th Edition, ISACA, 2020, p. 85: "Noncompliance with information security policies, standards, and procedures may result in increased threats, vulnerabilities, and losses, as well as legal, regulatory, and contractual liabilities for the enterprise."

Security incident response plans should be tested to find any deficiencies and improve existing processes. Testing the intrusion detection system (IDS) is a good practice but would not have prevented this situation. All personnel need to go through formal training to ensure that they understand the process, tools and methodology involved in handling security incidents. However, testing of the actual plans is more effective in ensuring the process works as intended. Reviewing the response procedures is not enough; the security response plan needs to be tested on a regular basis.