Which of the following was attacked using the Stuxnet malware?

Which of the following was attacked using the Stuxnet malware?
A . PLCS
B . PLC3
C . All of these
D . PLC7

Answer: A

Explanation:

Stuxnet is a highly sophisticated piece of malware discovered in 2010 that specifically targeted Supervisory Control and Data Acquisition (SCADA) systems used to control and monitor industrial processes.

The primary targets of Stuxnet were Programmable Logic Controllers (PLCs), which are critical components in industrial control systems.

Stuxnet was designed to infect Siemens Step7 software PLCs. It altered the operation of the PLCs to cause physical damage to the connected hardware, famously used against Iran’s uranium enrichment facility, where it caused the fast-spinning centrifuges to tear themselves apart.

Reference

Langner, R. "Stuxnet: Dissecting a Cyberwarfare Weapon." IEEE Security & Privacy, May-June 2011.

"W32.Stuxnet Dossier," Symantec Corporation, Version 1.4, February 2011.