ISO 27001 and ISO 27040: International Standards for Data Destruction

What Are ISO 27001 and ISO 27040?

ISO 27001 and ISO 27040 are international standards published by the International Organization for Standardization (ISO) in partnership with the International Electrotechnical Commission (IEC). ISO 27001 defines the requirements for an information security management system (ISMS). ISO 27040 provides detailed technical guidance on storage security, including requirements for secure disposal of storage media at end of life.

ISO 27001:

• Full name: ISO/IEC 27001:2022 — Information Security, Cybersecurity and Privacy Protection: Information Security Management Systems Requirements
• Current version: ISO 27001:2022 (published October 2022, supersedes ISO 27001:2013)
• What it covers: The framework for establishing, implementing, maintaining, and continually improving an ISMS within an organization
• Legal force: Voluntary internationally; contractually required in many B2B and government procurement relationships

ISO 27040:

• Full name: ISO/IEC 27040:2024 — Information Technology: Security Techniques: Storage Security
• Current version: ISO 27040:2024 (published January 2024, supersedes ISO 27040:2015)
• What it covers: Technical requirements and guidance for protecting data stored in ICT systems and networks, including storage media disposal and destruction
• Legal force: Voluntary; referenced by ISO 27001 Annex A as a supporting standard

Relationship between the two standards: ISO 27001 is the certification standard (organizations get certified against it). ISO 27040 is a technical implementation guide that fills in the specifics of how to handle storage security, including media destruction. ISO 27001 Annex A.7.14 requires secure disposal; ISO 27040:2024 specifies how to achieve it.

Important note on DDI and ISO: Data Destruction Inc. does not hold ISO 27001 certification. ISO 27001 certifies the information security management system of an organization, not the destruction methods of a vendor. Data Destruction Inc. provides destruction services consistent with ISO 27001 Annex A.7.14 and ISO 27040:2024 requirements. Organizations pursuing ISO 27001 certification use DDI’s services and documentation to satisfy the media disposal controls.

What ISO 27001:2022 Requires for Media Disposal

ISO 27001:2022 requirements for media disposal appear in Annex A, the list of information security controls. Annex A.7.14 is the operative control.

Control A.7.14: Secure Disposal or Reuse of Equipment

Standard: ISO/IEC 27001:2022, Annex A
Control identifier: A.7.14
Control name: Secure disposal or reuse of equipment
What it requires: All items of equipment containing storage media should be verified to ensure that any sensitive data and licensed software have been removed or securely overwritten prior to disposal or reuse.
Plain English: Any device that stored sensitive information must either have that information securely destroyed before the device is reused or must be physically destroyed before disposal. Returning a server to a vendor or selling a retired laptop without sanitizing the drives violates A.7.14.

ISO 27002:2022 guidance for A.7.14: ISO 27002 provides implementation guidance for ISO 27001 controls. For A.7.14, ISO 27002:2022 recommends verifying whether storage media contains sensitive information before disposal; using appropriate sanitization techniques including physical destruction, degaussing (for magnetic media), cryptographic erasure (for encrypted media with key destruction), or secure overwriting; documenting the disposal process; and retaining records. The supporting standard for technical implementation is ISO 27040:2024.

Control A.8.10: Information Deletion

Standard: ISO/IEC 27001:2022, Annex A
Control identifier: A.8.10 (new in the 2022 version)
What it requires: Information stored in information systems, devices, or in any other storage media should be deleted when no longer required.
Relevance to media disposal: A.8.10 covers the data lifecycle, including the obligation to delete or destroy information when its retention period ends. This control works in conjunction with A.7.14 (equipment disposal) to address both the data and the media.

What ISO 27040:2024 Requires for Storage Media Disposal

ISO 27040:2024 (Edition 2, January 2024) provides the technical requirements that implement ISO 27001 Annex A.7.14. It directly addresses media sanitization with specifics by media type.

Sanitization of Storage Devices

ISO 27040:2024 defines three sanitization methods aligned with NIST SP 800-88 r2 categories.

Logical sanitization (equivalent to NIST Clear/Purge): Overwriting all data sectors with patterns or using cryptographic erasure (CE) where the encryption key is destroyed. Suitable for media intended for reuse at the same or lower classification level.

Cryptographic sanitization (CE — equivalent to NIST Purge): Destroying the encryption keys of encrypted media. ISO 27040:2024 references ISO/IEC 19790 validation requirements for cryptographic implementations, consistent with NIST SP 800-88 r2 Section 3.2.

Physical destruction (equivalent to NIST Destroy): Shredding, crushing, disintegration, or incineration that renders the media physically unable to be read. Recommended for highest-sensitivity data or media leaving organizational control permanently.

SSD and flash storage: ISO 27040:2024 provides updated guidance for NVMe SSDs, eMMC, and UFS flash storage, recognizing that logical overwrite is ineffective due to wear-leveling. For these media, cryptographic erasure (where conditions are met) or physical destruction is required.

Alignment with NIST SP 800-88 r2: ISO 27040:2024 is explicitly aligned with NIST SP 800-88 r2. NIST SP 800-88 r2 itself references ISO 27040:2024 as a supporting standard. The two standards are technically consistent, though NIST SP 800-88 r2 is more commonly cited in US compliance contexts and ISO 27040:2024 is more commonly cited in European and international contexts.

How Data Destruction Inc. Satisfies ISO 27001 and ISO 27040 Requirements

Data Destruction Inc. provides destruction services consistent with ISO 27001:2022 Annex A.7.14 and ISO 27040:2024 through documented, NIST SP 800-88 r2 Destroy-level physical destruction.

For ISO 27001 certification audits: ISO 27001 auditors (accredited certification bodies) evaluate A.7.14 compliance by requesting evidence of secure disposal procedures and disposal records. The Certificate of Destruction from Data Destruction Inc. satisfies the disposal record requirement. The service agreement specifying destruction methods satisfies the procedure evidence requirement.

Who Must Comply with ISO 27001 and ISO 27040?

ISO 27001 and ISO 27040 are voluntary international standards. No law in the United States directly mandates ISO 27001 certification. However, compliance is required or strongly expected in several practical contexts.

B2B procurement requirements: Many multinational corporations, European companies, and government entities in Europe, the UK, Australia, and Asia-Pacific require their vendors and suppliers to hold ISO 27001 certification as a procurement condition. A US company seeking to sell data services to a European enterprise client frequently faces this requirement.

EU and UK regulatory context: The UK National Cyber Security Centre recognizes ISO 27001 as a framework for meeting Cyber Essentials Plus requirements. Many EU organizations treat ISO 27001 certification as evidence of GDPR Article 32 “appropriate technical and organizational measures.”

Financial sector: Certain banking and insurance regulators in multiple countries recognize ISO 27001 certification as evidence of information security governance.

US federal contracts: While FISMA and CMMC are the primary frameworks for federal contracts, some federal agencies accept ISO 27001-certified vendors for specific contract categories.

Data center and cloud providers: ISO 27001 certification is a baseline expectation for cloud service providers, data center operators, managed service providers, and SaaS companies operating in global markets. ISO 27040:2024 specifically addresses the storage security requirements for these providers.

Enforcement and Consequences

Because ISO 27001 is a voluntary standard, there are no statutory penalties for non-compliance. The consequences of non-conformance are commercial and reputational.

Certification consequences: An ISO 27001 surveillance audit that finds non-conformance with A.7.14 results in a non-conformance finding that must be remediated before the certification is renewed. Failure to remediate results in suspension or withdrawal of the ISO 27001 certificate.

Commercial consequences: Loss of ISO 27001 certification can disqualify a vendor from contracts that require it. For data center operators, managed service providers, and IT companies targeting multinational clients, loss of ISO 27001 certification is a material commercial event.

GDPR interaction: Article 32 of the GDPR requires organizations to implement “appropriate technical and organizational measures” to ensure information security. ISO 27001 certification (including A.7.14 compliance) is widely recognized as evidence of GDPR Article 32 compliance. Poor media disposal practices that result in a breach can trigger GDPR enforcement, with fines up to 4% of global annual turnover or EUR 20 million, whichever is higher.

Storage Media Disposal: ISO 27040:2024 Method by Media Type

ISO 27040:2024 defines three sanitization methods aligned with NIST SP 800-88 r2 categories. The following matrix maps each media type to the ISO 27040:2024 sanitization requirement under ISO 27001:2022 Annex A.7.14. Organizations pursuing ISO 27001 certification should document which method was applied, by whom, and on which date — the Certificate of Destruction from DDI provides this documentation.

Regulations and Frameworks That Interact with ISO 27001 / ISO 27040

ISO 27001 is a voluntary standard but frequently intersects with mandatory regulations. Organizations certified under ISO 27001 often use their ISMS controls — including A.7.14 media disposal — as evidence for multiple regulatory frameworks simultaneously. A serialized Certificate of Destruction from DDI supports all of the following.

Authoritative Source and Official Standards

Frequently Asked Questions