Certified Ethical Hacker – CEH – 312-50 – Question256

Nation-state threat actors often discover vulnerabilities and hold on to them until they want to launch a sophisticated attack. The Stuxnet attack was an unprecedented style of attack because it used four types of vulnerability.

What is this style of attack called?


A. zero-day
B. zero-hour
C. zero-sum
D. no-day

Correct Answer: A

Explanation:

Stuxnet is a malicious computer worm believed to be a jointly built American-Israeli cyber weapon. Exploiting four zero-day flaws, Stuxnet functions by targeting machines using the Microsoft Windows operating system and networks, then seeking out Siemens Step7 software.

References: https://en.wikipedia.org/wiki/Stuxnet