The goal in applying the 62443 series is to improve the safety, availability, integrity and confidentiality of components or systems used for industrial automation and control, and to provide criteria for procuring and implementi ng secure industrial automation and control systems. Conformance with the requirements of the 62443 series is intended to improve electronic security and help identif y and address vulnerabilities, reducing the ri sk of compromising confidential information or causing degradation or failure of the equipment (hardware and software) of processes under control.
The content of the series is directed towards those responsible for designing, implementing, or managing industrial automation and control systems. This information also applies to users, system integrators, security practitioners, and control systems manufacturers and vendors.
Source and further information: http://cybersecurity-expert.com/