What does 4.3.3-4.3.4 require?

A key decision is whether the media is intended for reuse (internal transfer, donation, refurbishment); where it is not, because of damage or otherwise, destruction is the simplest and most cost-effective method. Decisions are also shaped by who has control of and access to the media, which must be considered whenever media leave organisational control, for example on return from a lease, donation, resale or recycling. ISM handed securely to a maintenance provider under a contract that provides for confidentiality, or maintained on site under the organisation's supervision, remain under organisational control; ISM exchanged for warranty, rebate or other purposes and not returned are outside it. Legal, regulatory or statutory requirements for certain sensitive data may treat loss of control of unsanitized ISM as a data breach.

NIST SP 800-88 Rev 2 4.3.3-4.3.4: Decide on reuse...

Other controls in Section 4: the media sanitization programme (policy, scope, decision framework, performance, assurance, documentation, roles) – NIST SP 800-88 Rev 2

4 Make storage sanitization part of data governance with, at minimum, disposal policies and minimum methods, scope and decision criteria, performance of sanitization, adequacy determination and the records needed for compliance
4.1 Storage sanitization policy: align data classification with minimum methods; set disposal and reuse requirements, expected outcomes and acceptable techniques, documentation, roles and competencies, tool calibration and maintenance, and the vendor assurances required
4.2 Scope: unclassified federal ISM never holding FOUO, Privacy Act or PII need no sanitization; otherwise target all user data, treat selective and partial sanitization as risky, and prefer whole-ISM sanitization while allowing partial CE where justified
4.3 Decision framework: identify the confidentiality level under FIPS 199 and SP 800-60, accept clear for moderate data only as a conscious risk decision, weigh purge or clear against destroy for lease returns, environment, reuse, cost and feasibility, and decide on confidentiality rather than media type
4.3.1 Plan sanitization from the system security plan onward: choose ISM with sanitization in mind, obtain Statements of Volatility and the Appendix B characteristics, identify every ISM inside each item, combine techniques such as CE before shipment, and dispose without sanitization only where disclosure would cause no harm
4.3.2 Security categorisation set early under FIPS 199, SP 800-60 or CNSSI 1253, revisited at least every three years or on significant change, and internal confidentiality labels assigned to uncategorised information such as hard copy
4.3.5 Consider the data protection level alongside organisational control when deciding whether sanitization is necessary
4.3.6 Make and record the risk-based sanitization decision, then put the process, resources, verification steps and interfaces with key officials in place to carry it out

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpoint All NIST SP 800-88 Rev 2 controls