What is meant by 'malicious insider'?

• A. An external hacker with support from a third party
• B. An employee or contractor who misuses internal access for personal gain
• C. A user who accidentally discloses information
• D. A software developer with access to sensitive data

Answer: (B)

The term 'malicious insider' refers specifically to an employee or contractor who misuses their internal access to an organization’s systems and data for personal gain, which is accurately represented in the response provided. This behavior typically involves exploiting privileges that are granted to them as part of their job role. Malicious insiders can cause significant harm to an organization because they often have knowledge of internal processes, security measures, and access to sensitive data which can lead to data breaches, financial loss, or reputational damage.

While external hackers and their allies might pose a threat to an organization, they do not have the same level of access as an insider who is familiar with the internal workings of the organization. Similarly, a user who accidentally discloses information does not fit the profile of a malicious insider, as their actions are unintentional rather than aimed at benefiting themselves unlawfully. Lastly, while a software developer may have access to sensitive data due to their role, it does not inherently mean they are acting maliciously unless they exploit that access for illegitimate purposes. Therefore, the essence of a 'malicious insider' is captured in the description of someone misusing their internal access intentionally for personal gain.