CRY-05.2: Offline Storage
Mechanisms exist to remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements.
Control Question: Does the organization remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements?
General (4)
| Framework | Mapping Values |
|---|---|
| NIST Privacy Framework 1.0 | PR.DS-P1 |
| NIST 800-53 R4 | SC-28(2) |
| NIST 800-53 R5 (source) | SC-28(2) |
| NIST 800-53 R5 (NOC) (source) | SC-28(2) |
Capability Maturity Model
Level 0 — Not Performed
There is no evidence of a capability to remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements.
Level 1 — Performed Informally
C|P-CMM1 is N/A, since a structured process is required to remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements.
Level 2 — Planned & Tracked
C|P-CMM2 is N/A, since a well-defined process is required to remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements.
Level 3 — Well Defined
Cryptographic Protections (CRY) efforts are standardized across the organization and centrally managed, where technically feasible, to ensure consistency. CMM Level 3 control maturity would reasonably expect all, or at least most, the following criteria to exist: o Implements Public Key Infrastructure (PKI) key management controls to protect the confidentiality, integrity and availability of keys. o Implements and maintains an internal PKI infrastructure or obtains PKI services from a reputable PKI service provider.
- The Chief Information Security Officer (CISO), or similar function with technical competence to address cybersecurity concerns, analyzes the organization's business strategy to determine prioritized and authoritative guidance for cryptographic protections.
- The CISO, or similar function, develops a security-focused Concept of Operations (CONOPS) that documents management, operational and technical measures for cryptographic protections.
- A Governance, Risk & Compliance (GRC) function, or similar function, provides governance oversight for the implementation of applicable statutory, regulatory and contractual cybersecurity and data protection controls to protect the confidentiality, integrity, availability and safety of the organization's applications, systems, services and data using cryptographic protections.
- A steering committee is formally established to provide executive oversight of the cybersecurity and data privacy program, including cryptographic protections.
- Data classification and handling criteria govern requirements to encrypt sensitive/regulated data during transmission and in storage.
- Centrally-managed technologies implement cryptographic mechanisms on endpoints to control how sensitive/regulated data is encrypted during transmission and in storage.
- Certificate management is centrally-managed and the use of certificates is monitored.
- Cryptographic keys are proactively managed to protect the Confidentiality, Integrity and Availability (CIA) of cryptographic capabilities.
- Systems, applications and services that store, process or transmit sensitive/regulated data use cryptographic mechanisms to prevent unauthorized disclosure of information as an alternate to physical safeguards.
- An IT infrastructure team, or similar function:
- IT/cybersecurity personnel perform an annual review of deployed cryptographic cipher suites and protocols to identify and replace weak cryptographic cipher suites and protocols.
Level 4 — Quantitatively Controlled
Cryptographic Protections (CRY) efforts are metrics driven and provide sufficient management insight (based on a quantitative understanding of process capabilities) to predict optimal performance, ensure continued operations and identify areas for improvement. In addition to CMM Level 3 criteria, CMM Level 4 control maturity would reasonably expect all, or at least most, the following criteria to exist:
- 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.
- Both business and technical stakeholders are involved in reviewing and approving proposed changes.
Level 5 — Continuously Improving
See C|P-CMM4. There are no defined C|P-CMM5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to remove unused data from online storage and archive it off-line in a secure location until it can be disposed of according to data retention requirements.
Assessment Objectives
- CRY-05.2_A01 persistent organizational storage locations are identified.
- CRY-05.2_A02 recurring reviews of persistent organizational storage locations are conducted to identify sensitive / regulated data that is no longer needed.
- CRY-05.2_A03 the frequency with which to conduct reviews of persistent organizational storage locations is defined.
- CRY-05.2_A04 information to be removed from online storage and stored offline in a secure location is defined.
- CRY-05.2_A05 information is removed from online storage.
- CRY-05.2_A06 information is stored offline in a secure location.