A sensitive manufacturing facility has recently noticed an abnormal number of assembly-line robot failures. Upon intensive investigation, the facility discovers many of the SCADA controllers have been infected by a new strain of malware that uses a zero-day flaw in the operating system. Which of the following types of malicious actors is MOST likely behind this attack? A. A nation-state.
B. A political hacktivist.
C. An insider threat.
D. A competitor.

A. A nation-state.

Explanation:

Given that a nation-state attack if successful is about having access to the different sector or industries of networks, then followed it by compromising, defrauding, altering (often for fraud purpose, or destroy information

Therefore, in this case, considering the information giving above, the type of malicious actor that is MOST likely behind this attack is "a Nation-State."

the answer is b) 2nd

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