(ISC)2 Certified in Cybersecurity Practice Exam

Which of the following best describes the term “malicious cyberattack”?

1. A software update that fails

2. A threat leading to system failure

3. An intentional exploitation of a system weakness

4. An authorized system testing

The correct answer is: An intentional exploitation of a system weakness

The term “malicious cyberattack” is best described as an intentional exploitation of a system weakness. This definition captures the essence of what constitutes a malicious cyberattack: it is a deliberate act aimed at compromising the integrity, availability, or confidentiality of information systems. Attackers typically target vulnerabilities in software, hardware, or human behavior to achieve their goals, which can include stealing data, disrupting services, or causing damage to systems. Understanding this definition is crucial for recognizing the difference between malicious actions and other types of system issues. For instance, a software update that fails does not involve intention or malicious intent; it often results from human error or technical difficulties. Similarly, a threat leading to system failure may not necessarily imply that there is an active malicious agenda at play—threats can stem from natural causes or unintentional actions. Lastly, authorized system testing refers to legitimate activities like penetration testing, which are conducted to identify vulnerabilities in a legal and ethical manner, contrasting sharply with the intentional harm associated with a malicious cyberattack.