What is a malicious insider?

• A. An employee or contractor exploiting access to harm an organization
• B. A cybersecurity expert analyzing vulnerabilities
• C. A third-party vendor with access to data
• D. An external hacker targeting an organization

Answer: (A)

A malicious insider refers to an individual, typically an employee or contractor, who has authorized access to an organization's resources but chooses to exploit that access for harmful purposes. This can include theft of sensitive data, sabotaging systems, or unauthorized data manipulation, which can lead to significant damage to the organization.

The primary characteristic of a malicious insider is their insider status, which provides them with access that might not be available to outsiders and makes their malicious actions more difficult to detect. They often understand the organization’s security protocols and exploit vulnerabilities from within, making them particularly dangerous.

In contrast, the other options describe individuals or entities without the insider’s access and context. Cybersecurity experts, for example, typically work to enhance security rather than undermine it. Similarly, third-party vendors may have legitimate access to data but are not described as malicious insiders unless they misappropriate that access. External hackers, by definition, do not have authorized access and typically launch attacks from outside the organization's defenses.