id: "SA-08(16)" title: "Self-reliant Trustworthiness" family: "SA" family_name: "System and Services Acquisition" sort_id: "sa-08.16" priority: "P1" implementation_level: "system" parent: "SA-08" enhancement: True
Statement
Implement the security design principle of self-reliant trustworthiness in {{ insert: param, sa-08.16_odp }}.
Guidance
The principle of self-reliant trustworthiness states that systems minimize their reliance on other systems for their own trustworthiness. A system is trustworthy by default, and any connection to an external entity is used to supplement its function. If a system were required to maintain a connection with another external entity in order to maintain its trustworthiness, then that system would be vulnerable to malicious and non-malicious threats that could result in the loss or degradation of that connection. The benefit of the principle of self-reliant trustworthiness is that the isolation of a system will make it less vulnerable to attack. A corollary to this principle relates to the ability of the system (or system component) to operate in isolation and then resynchronize with other components when it is rejoined with them.
Assessment Objective
{{ insert: param, sa-08.16_odp }} implement the security design principle of self-reliant trustworthiness.
System and services acquisition policy
procedures addressing the security design principle of self-reliant trustworthiness used in the specification, design, development, implementation, and modification of the system
system design documentation
security and privacy requirements and specifications for the system
system security and privacy architecture
system security plan
other relevant documents or records
Organizational personnel with the responsibility for determining system security and privacy requirements
organizational personnel with system specification, design, development, implementation, and modification responsibilities
system developers
organizational personnel with information security responsibilities
Organizational processes for applying the security design principle of self-reliant trustworthiness in system specification, design, development, implementation, and modification
mechanisms supporting the application of the security design principle of self-reliant trustworthiness in system specification, design, development, implementation, and modification