Organizational units contribute to and agree on priorities is the best way to facilitate effective strategic alignment of security initiatives because it ensures that the security initiatives are aligned with the business goals and objectives, supported by relevant stakeholders, and prioritized based on risk and value. The business strategy is periodically updated is not sufficient to facilitate effective strategic alignment of security initiatives because it does not involve collaboration or communication between different organizational units. Procedures and standards are approved by department heads is not sufficient to facilitate effective strategic alignment of security initiatives because it does not reflect the strategic direction or vision of the organization. Periodic security audits are conducted by a third-party is not sufficient to facilitate effective strategic alignment of security initiatives because it does not address the planning or implementation of security initiatives. Reference: https://www.isaca.org/resources/isaca-journal/issues/2016/volume-2/how-to-align-security-initiatives-with-business-goals-and-objectives https://www.isaca.org/resources/isaca-journal/issues/2015/volume-1/how-to-measure-the-effectiveness-of-information-security-governance

Chain of custody forms with points of contact are the best way to enable an organization to maintain legally admissible evidence because they document the sequence of control, transfer, and analysis of the evidence, and every person who handled it, the dates and times, and the purpose for each action1. They also ensure the authenticity and integrity of the evidence, and prevent tampering or loss1. Documented processes around forensic records retention are not sufficient to maintain legally admissible evidence because they do not track or verify the handling of the evidence. Robust legal framework with notes of legal actions are not sufficient to maintain legally admissible evidence because they do not record or validate the preservation of the evidence. Forensic personnel training that includes technical actions are not sufficient to maintain legally admissible evidence because they do not account or certify the custody of the evidence. Reference: 1 https://www.researchgate.net/publication/326079761_Digital_Chain_of_Custody

The main purpose of creating and storing an external disk hash value when performing forensic data acquisition from a hard disk is to validate the integrity of the data during the analysis. This is done by comparing the original hash value of the disk to the hash value created during the acquisition process, which can be used to ensure that the data has not been tampered with or corrupted in any way. Additionally, by creating a hash value of the disk, it can be used to quickly verify the integrity of any data that is accessed from the disk in the future.

According to the Certified Information Security Manager (CISM) Study Manual, risk owners are responsible for managing a risk, including taking corrective action to reduce the risk to an acceptable level. When implementing controls, it is essential to obtain input from risk owners to ensure that the controls are effective in managing the risk to an acceptable level.
By obtaining input from risk owners, the organization can ensure that the controls are tailored to the specific risks and are effective in reducing the risk to an acceptable level. This can help to minimize the impact of the risk on the organization and reduce the potential for financial or reputational damage.