How can cybersecurity respond to an insider threat incident?

Crafting changes to information system policies is a proactive approach to managing and responding to insider threat incidents. This option is essential because it addresses the root cause of potential vulnerabilities. By updating and refining policies related to information systems, organizations can set clearer guidelines on acceptable behaviors, data access, and security protocols. This ensures that employees understand their responsibilities and the consequences of malicious or negligent actions, which can help deter insider threats.

Additionally, well-defined policies can guide the response to incidents when they occur, providing a structured framework through which cybersecurity teams can act decisively and effectively. For instance, policies might establish protocols for monitoring user activity, reporting suspicious behavior, and enforcing disciplinary actions—elements that are crucial in mitigating risks associated with insider threats.

The effectiveness of the other options, while noteworthy in various contexts, does not directly address the necessary adjustments to policies that form the backbone of an organization's cybersecurity strategy. Simply removing employees can lead to loss of talent and institutional knowledge, increasing transparency without policies may not prevent threats, and limiting access indiscriminately does not address the specific behaviors that lead to insider threats.