Final answer:
A cyber attacker who monitors, modifies, and reinserts communication on a network is conducting a man-in-the-middle (MITM) attack, which is option 4 in the provided choices. The correct answer to the question is option 4) man-in-the-middle.
Step-by-step explanation:
An attacker who monitors communication on the network, alters the content of the communication, and then reinserts it back into the network is performing a type of cyber security attack known as a man-in-the-middle (MITM) attack. In this scenario, the correct answer to the question is option 4) man-in-the-middle.
This type of attack is particularly dangerous because it can occur without the knowledge of either party involved in the communication, allowing the attacker to intercept, read, and modify the messages being sent.
A man-in-the-middle (MITM) attack occurs when an unauthorized entity intercepts and potentially alters the communication between two parties without their knowledge. In this scenario, the attacker secretly relays and possibly manipulates the exchanged information, gaining unauthorized access to sensitive data.
This type of attack can compromise the confidentiality and integrity of the communication, leading to severe consequences such as unauthorized access to login credentials, financial information, or other sensitive data. Preventive measures against MITM attacks include encryption protocols, secure communication channels, and user awareness.
Regularly updating and patching systems also helps mitigate vulnerabilities that attackers might exploit. Understanding and implementing robust security measures are crucial in safeguarding against the sophisticated methods employed by attackers seeking to exploit vulnerabilities in network communications.
The correct answer to the question is option 4) man-in-the-middle.