Eccouncil Exam ICS-SCADA Topic 1 Question 28 Discussion

IEC 62443 is an international series of standards on Industrial communication networks and system security, specifically related to Industrial Automation and Control Systems (IACS). Within the IEC 62443 standards, Security Level 3 is defined as protection against deliberate or specialized intrusion. It is designed to safeguard against threats from skilled attackers (cybercriminals or hackers) targeting specific processes or operations within the industrial control system. Reference:

International Electrotechnical Commission, 'IEC 62443 Standards'.