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CIS Critical Security Controls
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12,1: Ensure Network Infrastructure is Up-to-Date
12,2: Establish and Maintain a Secure Network Architecture
12,3: Securely Manage Network Infrastructure
12,4: Establish and Maintain Architecture Diagram(s)
12,5: Centralize Network Authentication, Authorization, and Auditing (AAA)
12,6: Use of Secure Network Management and Communication Protocols 
12,7: Ensure Remote Devices Utilize a VPN and are Connecting to an Enterprise’s AAA Infrastructure
12,8: Establish and Maintain Dedicated Computing Resources for All Administrative Work
Establish and Maintain a Secure Network Architecture
12,2: Establish and Maintain a Secure Network Architecture
Policy defined
Not applicable - Not applicable
None - None
Informal - Informal
Partially written - Partially written
Written - Written
Approved and communicated - Approved and communicated
Control implemented
Not applicable - Not applicable
Not implemented - Not implemented
Parts of policy implemented - Parts of policy implemented
Implemented on some systems - Implemented on some systems
Implemented on most systems - Implemented on most systems
Implemented on all systems - Implemented on all systems
Control automated
Not applicable - Not applicable
Not automated - Not automated
Parts of policy automated - Parts of policy automated
Automated on some systems - Automated on some systems
Automated on most systems - Automated on most systems
Automated on all systems - Automated on all systems
Control reported
Not applicable - Not applicable
Not reported - Not reported
Parts of policy reported - Parts of policy reported
Reported on some systems - Reported on some systems
Reported on most systems - Reported on most systems
Reported on all systems - Reported on all systems
Description

Establish and maintain a secure network architecture. A secure network architecture must address segmentation, least privilege, and availability, at a minimum.