A system that facilitates enhanced security with respect to an industrial automation environment comprises a legacy device that is existent within an industrial automation system and a central access authority that provides access rules to a proxy. The proxy receives an access request directed to the...http://www.google.de/patents/US7950044?utm_source=gb-gplus-sharePatent US7950044 - Centrally managed proxy-based security for legacy automation systems
Centrally managed proxy-based security for legacy automation systems
