Final answer:
The answer is confidentiality, which refers to unauthorized access to information by discovering an illicit packet-capturing tool in the network, representing a significant cyberspace threat.
Step-by-step explanation:
The correct answer is confidentiality.
When an unauthorized packet-capturing tool is found on the network, it is an attack on the confidentiality aspect of the CIA (Confidentiality, Integrity, Availability) triad. Packet capture, also known as packet sniffing, allows an attacker to intercept data packets moving through the network. This breach enables the attacker to access sensitive information, which undermines the assurance that information is only accessible by authorized individuals.
The use of packet-capturing tools by militant groups or governments in cyber warfare tactics could result in intelligence gathering, communication disruption, and the spread of disinformation. It is crucial for security professionals to detect and mitigate such threats to maintain the security and integrity of their networks and protect against espionage or sabotage activities.