Explanation
The best course of action to prevent further damage is to isolate the endpoint device. Isolating the endpoint device will prevent the compromised system from connecting to other systems on the network and spreading the infection. Other possible courses of action include wiping and resetting the endpoint device, running a virus scan, and powering off the endpoint device. However, these actions will not prevent the compromised system from continuing to spread the infection.

Explanation
The greatest value provided by a Security Information and Event Management (SIEM) system is facilitating the monitoring of risk occurrences. SIEM systems collect, analyze and alert on security-related data from various sources such as firewall logs, intrusion detection/prevention systems, and system logs. This allows organizations to identify security threats in real-time and respond quickly, helping to mitigate potential harm to their systems and data.

Explanation
Senior management review and approval of an information security strategic plan is important to ensure that the plan is aligned with the organization's overall corporate governance objectives. It is also important to ensure that the plan takes into account any legal and regulatory requirements, as well as the resources and staff needed to properly implement the plan.