SA-24 Design For Cyber Resiliency. Design organizational systems, system components, or system services to achieve cyber resiliency by: Defining the following cyber resiliency goals: [organization-defined]. Defining the following cyber resiliency objectives: [organization-defined]. Defining the following
Design For Cyber Resiliency. Design organizational systems, system components, or system services to achieve cyber resiliency by: Defining the following cyber resiliency goals: [organization-defined]. Defining the follow.
5
artefacts
0
held by a system
1
at each review
hard
to go live
Document repository
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
none for this control
periodic reviewEvidence produced at each review
- Evidence resiliency was addressed at design time rather than added afterwards · Document repository
governing documentDocuments that govern the control
- The defined cyber resiliency goals, objectives, techniques and design principles recorded for the system · Policy repository / GRC workspace
- Design documentation showing how each technique and design principle was applied · Document repository
- Traceability from the resiliency objectives to concrete design decisions and components · Policy repository / GRC workspace
- Test or analysis results demonstrating the system behaves as intended under the adversary conditions the goals name · Document repository
First move
This control is evidenced by people and documents, not systems. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date. Do not try to automate it.
Common gaps auditors find
- Resiliency goals stated at a level that no design decision can be traced to
- Techniques selected from a list with no analysis of which adversary effects they actually counter
- Resiliency claimed from redundancy alone, which addresses failure rather than adversary presence
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
Build my evidence sheetSA-23 Specialization. Employ [organization-defined] on [organization-defined] supporting mission essential services or functions to increase the trustworthiness in those systems or components · SC-1 Policy and procedures for system and communications protection