A security engineer is re-architecting a network environment that provides regional electric distribution services. During a pretransition baseline assessment, the engineer identified the following security-relevant characteristics of the environment:
• Enterprise IT servers and supervisory industrial systems share the same subnet.
• Supervisory controllers use the 750MHz band to direct a portion of fielded PLCs.
• Command and telemetry messages from industrial control systems are unencrypted and unauthenticated.
Which of the following re-architecture approaches would be best to reduce the company's risk?
Steel16
1 week, 1 day agogrelaman
5 months, 2 weeks ago23169fd
8 months agoarmid
8 months, 1 week agoisaphiltrick
8 months, 1 week ago