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NIST CSF 2.0
Browse NIST CSF 2.0
PR.IR-01 PR.IR-02 PR.IR-03 PR.IR-04
Resilience Measures
PR.IR-03: Mechanisms are implemented to achieve resilience requirements in normal and adverse situations
  • Ex1:  Avoid single points of failure in systems and infrastructure
  • Ex2:  Use load balancing to increase capacity and improve reliability
  • Ex3:  Use high-availability components like redundant storage and power supplies to improve system reliability
Tier
Not Applicable - Not applicable
No - The outcome(s) have not been meaningfully implemented.
Tier 1: Partial - Application of the organizational cybersecurity risk strategy is managed in an ad hoc manner. Prioritization is ad hoc and not formally based on objectives or threat environment.
Tier 2: Risk Informed - Risk management practices are approved by management but may not be established as organization-wide policy. The prioritization of cybersecurity activities and protection needs is directly informed by organizational risk objectives, the threat environment, or business/mission requirements.
Tier 3: Repeatable - The organization’s risk management practices are formally approved and expressed as policy. Risk-informed policies, processes, and procedures are defined, implemented as intended, and reviewed. Organizational cybersecurity practices are regularly updated based on the application of risk management processes to changes in business/mission requirements, threats, and technological landscape.
Tier 4: Adaptive - There is an organization-wide approach to managing cybersecurity risks that uses risk-informed policies, processes, and procedures to address potential cybersecurity events.
Description

Mechanisms are implemented to achieve resilience requirements in normal and adverse situations