What is a crucial step after identifying an insider threat?

After identifying an insider threat, launching an internal investigation is a crucial step because it allows an organization to thoroughly assess the situation, gather evidence, and understand the extent of the threat. This investigation is essential in determining the intentions of the insider, the potential damage caused, and the areas that may need immediate attention. By conducting an internal investigation, the organization can also ensure compliance with legal and regulatory requirements regarding employee conduct and data protection.

While training employees on security policies and updating software security measures are important components of an overall security strategy, they are not as directly relevant to the immediate response needed once a specific insider threat has been identified. The investigation serves as a foundational response that informs any subsequent actions, policies, or measures that need to be implemented as a result of the findings. Therefore, it is the most critical step following the identification of such a threat.