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SEA-25: Distributed Processing & Storage

SEA 4 — Medium Protect

Mechanisms exist to distribute processing and storage across multiple physical locations.

Renumbered: Formerly SEA-15 in SCF 2025.4.

Control Question: Does the organization distribute processing and storage across multiple physical locations?

General (11)
Framework Mapping Values
MITRE ATT&CK 16 T1070 T1070.001 T1070.002 T1070.008 T1119 T1565 T1565.001
NIST 800-53 R4 SC-36
NIST 800-53 R5.2 PE-23 SC-36
NIST 800-82 R3 PE-23 SC-36
NIST 800-160 Vol2 R1 SC-36
NIST 800-161 R1 PE-23 SC-36
NIST 800-161 R1 Flow Down PE-23 SC-36
NIST 800-161 R1 Level 2 PE-23 SC-36
NIST 800-161 R1 Level 3 PE-23 SC-36
SCF DPMP 2026 5.6
SPARTA 4.0 CM0074

Capability Maturity Model

Level 0 — Not Performed

Practices are non-existent, based on the inability to demonstrate an implemented and operational capability. A reasonable person would conclude the control is not being performed.

Level 1 — Performed Informally

Secure Engineering & Architecture (SEA) domain capabilities are ad hoc and inconsistent. Capability criteria associated with this control may include: ▪ Policies, standards & procedures associated with SEA domain capabilities provide limited coverage due to the depth and breadth of the existing documentation. ▪ Security engineering-related activities are decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices. ▪ IT and/or cybersecurity personnel use an informal process to design, build and maintain secure, compliant and resilient solutions.

Level 2 — Planned & Tracked

Secure Engineering & Architecture (SEA) capabilities are requirements-driven, but are not standardized across the entity (e.g., local/regional level consistency). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with SEA domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with SEA domain capabilities are documented and maintained by process owners. ▪ IT and/or cybersecurity personnel work with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with SEA domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Secure engineering and architecture-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines). ▪ Secure engineering and architecture management may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel. ▪ IT and/or cybersecurity personnel define entity-specific secure engineering practices to protect the Confidentiality, Integrity, Availability and Safety (CIAS) of the entity's TAASD. ▪ IT and/or cybersecurity personnel align secure engineering practices with the entity's broader IT architecture practices. ▪ IT and/or cybersecurity personnel use secure engineering practices to influence Secure Baseline Configurations (SBC).

Level 3 — Well Defined

Secure Engineering & Architecture (SEA) capabilities are standardized across the entity for applicability to People, Processes, Technologies, Data and/or Facilities (PPTDF) to ensure consistency for Technology Assets, Applications, Services and/or Data (TAASD). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with SEA domain capabilities are formally documented and centrally-managed by the entity's Governance, Risk & Compliance (GRC) team, or similar function. ▪ Standardized Operating Procedures (SOP) associated with SEA domain capabilities are well-documented and kept current by process owners. ▪ A cybersecurity engineering / architecture team, or similar function, is appropriately staffed and supported to implement and maintain RSK domain capabilities. ▪ Technology is leveraged to enhance the efficiency and accuracy of secure engineering management operations (e.g., project management solution). ▪ The entity's Governance, Risk & Compliance (GRC) team, or similar function, works with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with SEA domain capabilities to address Minimum Compliance Requirements (MCR) (e.g., applicable statutory, regulatory and/or contractual requirements) and Discretionary Security Requirements (DSR) (e.g., entity-required controls). ▪ Secure Baseline Configurations (SBC) enforce the secure engineering principles on all applicable Technology Assets, Applications and/or Services (TAAS). ▪ An implemented and operational capability exists to distribute processing and storage across multiple physical locations.

Level 4 — Quantitatively Controlled

Secure Engineering & Architecture (SEA) capabilities, in addition to being standardized across the entity and centrally managed to ensure consistency across Technology Assets, Applications, Services and/or Data (TAASD), efforts are metrics driven to provide sufficient insight for decision makers to predict optimal performance, ensure continued operations and/or identify areas for improvement. Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Applicable SCR-CMM Level 3 (Well Defined) capabilities are implemented and operational. ▪ Metrics reporting includes quantitative analysis of Key Performance Indicators (KPIs). ▪ Metrics reporting includes quantitative analysis of Key Risk Indicators (KRIs). ▪ Scope of metrics, KPIs and KRIs covers organization-wide cybersecurity and data protection controls, including functions performed by third-parties. ▪ Organizational leadership maintains a formal process to objectively review and respond to metrics, KPIs and KRIs (e.g., monthly or quarterly review). ▪ Based on metrics analysis, process improvement recommendations are submitted for review and are handled in accordance with change control processes. ▪ Business and technical stakeholders are involved in reviewing and approving proposed changes to evolve capabilities.

Level 5 — Continuously Improving

Utilize SCR-CMM Level 3 or Level 4 (if available) criteria definitions: ▪ There are no defined Level 5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to operationalize this control. ▪ Level 5 capabilities should be considered “world-class” where the control builds on Level 4 capabilities, but are continuously improving through Artificial Intelligence (AI) and/or Machine Learning (ML) technologies. ▪ While it may be possible to develop responsive capabilities for this control through the use of AI and/or ML technologies, the criteria would be organization-specific to define.

Assessment Objectives

  1. SEA-25_A01 the logical and physical location where the system resides is planned considering physical and environmental hazards.
  2. SEA-25_A02 for existing facilities, physical and environmental hazards are considered in the organizational risk management strategy.
  3. SEA-25_A03 processing components to be distributed across multiple locations/domains are defined.
  4. SEA-25_A04 storage components to be distributed across multiple locations/domains are defined.
  5. SEA-25_A05 processing components are distributed across organization-defined locations.
  6. SEA-25_A06 storage components are distributed across organization-defined locations.
  7. SEA-25_A07 system functions or resources to distribute and relocate are defined.
  8. SEA-25_A08 frequency to distribute and relocate system functions or resources is defined.
  9. SEA-25_A09 system functions or resources are distributed and relocated frequency.

Technology Recommendations

Micro/Small

  • Cloud services with multi-zone redundancy

Small

  • Cloud storage/compute across availability zones
  • Off-site backups

Medium

  • Multi-availability-zone architecture for critical services
  • Geographically separate backup storage

Large

  • Multi-region or multi-site processing and storage for critical systems
  • Content delivery / distributed storage platforms

Enterprise

  • Enterprise geographically distributed architecture (active/active regions, distributed storage)
  • Global load balancing and replication
  • Resilience validated through DR testing

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