← SC-30

Change Processing and Storage Locations

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Requirements NIST SOURCE

Change the location of [processing and/or storage][one of: ; random time intervals]].

Discussion (NIST Supplemental Guidance)

Adversaries target critical mission and business functions and the systems that support those mission and business functions while also trying to minimize the exposure of their existence and tradecraft. The static, homogeneous, and deterministic nature of organizational systems targeted by adversaries make such systems more susceptible to attacks with less adversary cost and effort to be successful. Changing processing and storage locations (also referred to as moving target defense) addresses the advanced persistent threat using techniques such as virtualization, distributed processing, and replication. This enables organizations to relocate the system components (i.e., processing, storage) that support critical mission and business functions. Changing the locations of processing activities and/or storage sites introduces a degree of uncertainty into the targeting activities of adversaries. The targeting uncertainty increases the work factor of adversaries and makes compromises or breaches of the organizational systems more difficult and time-consuming. It also increases the chances that adversaries may inadvertently disclose certain aspects of their tradecraft while attempting to locate critical organizational resources.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for SC-30(3) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. processing and/or storage locations to be changed are defined;
  2. one of the following PARAMETER VALUES is selected: { <SC-30(03)_ODP[03] time frequency>; random time intervals};
  3. time frequency at which to change the location of processing and/or storage is defined (if selected);
  4. the location of <SC-30(03)_ODP[01] processing and/or storage> is changed <SC-30(03)_ODP[02] SELECTED PARAMETER VALUE>.

Examine

[SELECT FROM: System and communications protection policy; configuration management policy and procedures; procedures addressing concealment and misdirection techniques for the system; list of processing/storage locations to be changed at organizational time intervals; change control records; configuration management records; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; organizational personnel with the responsibility to change processing and/or storage locations].

Test

[SELECT FROM: Mechanisms supporting and/or implementing changing processing and/or storage locations].

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for SC-30(3). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • System and communications protection policy
  • system security plan

Configuration

  • configuration management policy and procedures
  • configuration management records

Testing

  • Mechanisms supporting and/or implementing changing processing and/or storage locations

Other Records

  • procedures addressing concealment and misdirection techniques for the system
  • list of processing/storage locations to be changed at organizational time intervals
  • change control records
  • system audit records
  • other relevant documents or records