What type of access does a malicious insider exploit?

• A. Physical access to the organization's building
• B. Network access granted to employees or contractors
• C. Access to third-party vendors' systems
• D. Remote access through public networks

Answer: (B)

A malicious insider typically exploits network access granted to employees or contractors within an organization. This type of access enables an insider to leverage their legitimate permissions to navigate through internal systems and databases without authentication barriers. Since they already possess a certain level of trust and access rights, malicious insiders can execute harmful actions like data theft, sabotage, or espionage without triggering standard security measures. This makes them particularly dangerous as their insider knowledge allows them to exploit vulnerabilities that external attackers cannot reach.

Physical access to the organization’s building may present security risks, but it is not solely related to the insider's exploitation of digital networks. Access to third-party vendors' systems usually pertains to outside entities rather than insiders, and while remote access through public networks carries its own set of risks, the specific exploitation by malicious insiders more closely aligns with the internal network access they already have.