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  1. Frameworks
  2. >C2M2
  3. >Cybersecurity Architecture
  4. >Cybersecurity Architecture - Objective 2
  5. >C2M2-ARCHITECTURE-2I
C2M2-ARCHITECTURE-2IActive

Separate networks are implemented, where warranted, that logically or physically segment assets into security zones with independent authentication

Statement

Separate networks are implemented, where warranted, that logically or physically segment assets into security zones with independent authentication

Location

Domain
Cybersecurity Architecture
Objective
Cybersecurity Architecture - Objective 2

Practice Details

Identifier
C2M2-ARCHITECTURE-2I
Domain
Cybersecurity Architecture
Objective
Objective 2
Maturity Level
MIL-3

Help Text

The cybersecurity requirements of certain assets may require isolation through logical or physical segmentation from other organizational networks. In addition, these networks should include an independent authentication scheme that is not shared with other organizational systems. An organization may utilize this type of segmentation for critical OT assets.

Related Practices · Progression: This practice is part of a practice progression. Practice progressions are groups of related practices that represent increasingly complete or more advanced implementations of an activity. The practices in this progression include: ARCHITECTURE-2b, ARCHITECTURE-2d, ARCHITECTURE-2h, ARCHITECTURE-2i, ARCHITECTURE-2j, ARCHITECTURE-2l.

AESCSF
AESCSF-ARCHITECTURE-2iequivalentvia derived-shared-practice-structure
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← Back to Cybersecurity Architecture - Objective 2
Cybersecurity Architecture - Objective 212 controls
C2M2-ARCHITECTURE-2ANetwork protections are implemented, at least in an ad hoc mannerC2M2-ARCHITECTURE-2BThe organization’s IT systems are separated from OT systems through segmentation, either through physical means or logical means, at least in an ad hoc mannerC2M2-ARCHITECTURE-2CNetwork protections are defined and enforced for selected asset types according to asset risk and priority (for example, internal assets, perimeter assets, assets connected to the organization’s Wi-Fi, cloud assets, remote access, and externally owned devices)C2M2-ARCHITECTURE-2DAssets that are important to the delivery of the function are logically or physically segmented into distinct security zones based on asset cybersecurity requirementsC2M2-ARCHITECTURE-2ENetwork protections incorporate the principles of least privilege and least functionalityC2M2-ARCHITECTURE-2FNetwork protections include monitoring, analysis, and control of network traffic for selected security zones (for example, firewalls, allowlisting, intrusion detection and prevention systems (IDPS))C2M2-ARCHITECTURE-2GWeb traffic and email are monitored, analyzed, and controlled (for example, malicious link blocking, suspicious download blocking, email authentication techniques, IP address blocking)C2M2-ARCHITECTURE-2HAll assets are segmented into distinct security zones based on cybersecurity requirementsC2M2-ARCHITECTURE-2ISeparate networks are implemented, where warranted, that logically or physically segment assets into security zones with independent authenticationC2M2-ARCHITECTURE-2JOT systems are operationally independent from IT systems so that OT operations can be sustained during an outage of IT systemsC2M2-ARCHITECTURE-2KDevice connections to the network are controlled to ensure that only authorized devices can connect (for example, network access control (NAC))C2M2-ARCHITECTURE-2LThe cybersecurity architecture enables the isolation of compromised assets