Issue
Controller without firewalls are more vulnerable to unauthorized access, malware, and cyber attacks. This can lead to potential disruptions, sabotage, or unauthorized control of industrial processes.
Resolution
Having a firewall script in the controller helps enhance the security of the controller and the connected industrial network. It allows you to define and enforce access control policies, filtering incoming and outgoing network traffic based on specific rules. This helps protect against unauthorized access, malicious attacks, and potential vulnerabilities.
Disclaimer
The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.
