Which of the following options best defines an attack vector in terms of cyber security?

A) A technique to encrypt sensitive data during transmission

B) A software tool used by ethical hackers to test system vulnerabilities

C) A hardware component that helps prevents denial-of-service attacks

D) A method or avenue used by cyber threats to gain unauthorized access to a system or network

Correct Answer : A method or avenue used by cyber threats to gain unauthorized access to a system or network

Explanation : An attack vector in the context of cybersecurity refers to the method or avenue through which cyber threats, such as hackers or malicious actors, gain unauthorized access to a system, network, or application.