Purpose
To manage electronic access to BES Cyber Systems by specifying a controlled Electronic Security Perimeter in support of protecting BES Cyber Systems against compromise that could lead to misoperation or instability in the BES.
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To establish the responsibility of Reliability Coordinators to act or direct other entities to act.
Applicability
4.1. Reliability Coordinator
4.2. Transmission Operator
4.3. Balancing Authority
4.4. Generator Operator
4.5.
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Purpose
To prevent instability, uncontrolled separation, or Cascading outages that adversely impact reliability, by ensuring the Reliability Coordinator has the data it needs to monitor and assess the operation of its Reliability Coordinator Area.
Applicability
4.1. Reliability Coordinator
4.2. Balancing Authority.
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Purpose
To ensure that the Transmission Operator and Balancing Authority have data needed to fulfill their operational and planning responsibilities.
Applicability
4.1. Transmission Operator
4.2. Balancing Authority
4.3. Generator Owner
4.4.
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Purpose
To identify and categorize BES Cyber Systems and their associated BES Cyber Assets for the application of cyber security requirements commensurate with the adverse impact that loss, compromise, or misuse of those BES Cyber Systems could have on the reliable operation of the BES. Identification and categorization of BES Cyber Systems support appropriate protection against compromises that could lead to misoperation or instability in the BES.
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Purpose
To manage system security by specifying select technical, operational, and procedural requirements in support of protecting BES Cyber Systems against compromise that could lead to misoperation or instability in the Bulk Electric System (BES).
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To manage physical access to Bulk Electric System (BES) Cyber Systems by specifying a physical security plan in support of protecting BES Cyber Systems against compromise that could lead to misoperation or instability in the BES.
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To minimize the risk against compromise that could lead to misoperation or instability in the Bulk Electric System (BES) from individuals accessing BES Cyber Systems by requiring an appropriate level of personnel risk assessment, training, and security awareness in support of protecting BES Cyber Systems
Applicability
4.1.
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Purpose
To specify consistent and sustainable security management controls that establish responsibility and accountability to protect BES Cyber Systems against compromise that could lead to misoperation or instability in the Bulk Electric System (BES)
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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Purpose
To prevent and detect unauthorized changes to BES Cyber Systems by specifying configuration change management and vulnerability assessment requirements in support of protecting BES Cyber Systems from compromise that could lead to misoperation or instability in the Bulk Electric System (BES).
Applicability
4.1. Functional Entities: For the purpose of the requirements contained herein,
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