Before revision: Secret cryptographic key used to verify communication between the PLC and workstation can be extracted from Studio 5000 Logix Designer programming software and used to remotely change program code and configuration of connected controller.
After revision: The secret cryptographic key used to verify communication between the PLC and workstation could be extracted from Studio 5000 Logix Designer )the programming software (a and used to remotely change program code and configuration of connected controller.