SR-3(1): Diverse Supply Base
Control Family:
Parent Control:
CSF v2.0 References:
Baselines:
(Not part of any baseline)
Control is new to this version of the control set.
Control Statement
Employ a diverse set of sources for the following system components and services: [Assignment: organization-defined system components and services].
Supplemental Guidance
Diversifying the supply of systems, system components, and services can reduce the probability that adversaries will successfully identify and target the supply chain and can reduce the impact of a supply chain event or compromise. Identifying multiple suppliers for replacement components can reduce the probability that the replacement component will become unavailable. Employing a diverse set of developers or logistics service providers can reduce the impact of a natural disaster or other supply chain event. Organizations consider designing the system to include diverse materials and components.
OT Discussion
Using a diverse set of suppliers in the OT environment can improve reliability by reducing common cause failures. This is not always possible since some technologies have limited supply options that meet the operational requirements.