For an EU financial entity in scope of the Digital Operational Resilience Act (DORA), meeting software supply chain compliance requirements means managing software providers and dependencies as part of the entity’s broader ICT risk and third-party risk program. Map each service to the business functions it supports, assess suppliers before contracting, set appropriate controls in written agreements, monitor risks throughout the relationship, and keep evidence that management can review. DORA has applied since 17 January 2025; the exact obligations depend on the entity, service, and whether it supports a critical or important function.
Start with DORA, but define which rules apply to your entity
DORA, Regulation (EU) 2022/2554, is the central EU baseline for digital operational resilience and ICT third-party risk for financial entities within its scope. It is not a global software supply chain law, and its application is not identical for every financial firm or every supplier relationship. Confirm the entity’s regulatory classification, the relevant national supervisory context, and the services in scope before treating any checklist as a legal determination.
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DORA’s ICT risk-management requirements include governance and inventories, while Articles 28–30 address ICT third-party risk and contractual arrangements. The European Commission’s Delegated Regulation (EU) 2024/1774 supplements the ICT risk-management framework requirements. The Commission’s current DORA implementing and delegated acts index is relevant because technical measures may supplement the regulation; legal and compliance teams should check the current text and applicable measures when designing controls.
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Software supply chain controls fit within this structure. DORA’s recitals expressly include software suppliers in the ICT third-party risk context, but the applicable treatment depends on the service and arrangement. Distinguish a supplier that provides an ICT service used to run business operations from a software product or component acquired without an ongoing service relationship; assess the facts rather than assuming every software purchase creates the same DORA duties.
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Keep accountability with the financial entity
Outsourcing software, cloud hosting, data processing, analytics, or support does not transfer the regulated entity’s responsibility for its obligations. DORA Article 28(1)(a) states that financial entities using ICT services to run business operations “shall, at all times, remain fully responsible for compliance with, and the discharge of, all obligations under this Regulation and applicable financial services law.” A provider’s assurance report, certification, questionnaire response, or contract cannot replace the entity’s own risk assessment and oversight.
Assign accountable management oversight and involve security, engineering, procurement, legal, compliance, and relevant business owners. Each material supplier relationship needs a named internal owner who can explain the service, its supported functions, the risks accepted, and any unresolved remediation.
Build an inventory that connects software to business impact
Before assessing whether the chain is controlled, establish what is in it and what depends on it. Connect software and supplier records to the wider ICT asset inventory, business processes, and the functions they support. DORA requires relevant inventories and a register of ICT service arrangements; record design should reflect applicable requirements and the institution’s risk profile.
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A usable record for software or an ICT supplier can include:
- Product or service name, provider, internal business owner, and service description.
- Deployment, service, data-processing, and relevant subcontractor locations.
- Data handled, known dependencies, and connections to other ICT assets or services.
- Business processes and critical or important functions supported, with the rationale for the classification.
- Contract dates, renewal or termination milestones, subcontracting terms, and review status.
- Risk assessment date, open issues, accountable remediation owner, and next review trigger.
Update the inventory and register when there is a material change, such as a new supplier, a change in service or data location, a new subcontractor, a shift in business use, or a significant incident. An SBOM stored without ownership, service mapping, or a process for acting on its findings is not a substitute for an operational inventory.
Assess suppliers before committing to an arrangement
Perform due diligence before signing or materially changing an ICT arrangement. Scale the depth to the service’s risk and importance, but do not interpret proportionality as permission to skip assessment. Determine whether the arrangement supports a critical or important function and examine whether the provider and the proposed operating model are suitable for that role.
Assessment topics should include provider security and information-security practices, service continuity, incident handling and cooperation, subcontracting, data location and processing, concentration risk, and the entity’s ability to monitor and supervise the service. Consider whether the provider can meet the entity’s requirements over the expected relationship and whether realistic alternatives exist if the service fails or becomes unsuitable.
Make contracts support oversight, resilience, and exit
DORA requires written arrangements for ICT services, with additional requirements relevant to services supporting critical or important functions. Use Articles 28–30 and applicable technical standards to validate the precise contractual duties for a particular arrangement. The agreement should clearly allocate responsibilities and describe the services; tailor the remaining terms to the service, risk, and applicable DORA provisions.
Review whether the written agreement addresses:
- Service scope, service levels, roles, responsibilities, and reporting.
- Whether subcontracting is allowed, applicable conditions, and relevant change notification.
- Locations where services are provided and data is processed or stored.
- Security measures, incident notification and cooperation, and access to relevant information.
- Access, audit, and supervisory rights appropriate to the arrangement.
- Continuity and recovery arrangements, termination rights, transition assistance, and data return or deletion.
For important services, contract language should be matched by operational capability: the entity needs to know how it would obtain data, maintain service or transition it, and manage provider or subcontractor changes. A contractual right that cannot be exercised in practice is weak evidence of effective oversight.
Use secure development and dependency controls as implementation evidence
Apply software engineering controls proportionate to the software’s role and risk. Keep evidence of secure design and code review, build and release integrity, vulnerability testing, remediation, and component provenance. Track dependencies sufficiently to identify which applications may be affected by a vulnerable or compromised component and to prioritize response.
A software bill of materials (SBOM) can support component visibility and vulnerability response, especially where products have complex direct and transitive dependencies. It is an evidence-enabling tool, not proof that software is secure. The sources cited here do not establish that DORA universally requires every financial entity to produce or obtain an SBOM for every software product.
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Monitor the relationship, remediate issues, and keep exit realistic
Supplier diligence is not a one-time onboarding task. Set review triggers and cadence based on risk, and revisit assessments when service conditions or risks materially change. Track supplier incidents, control findings, subcontractor changes, vulnerability exposure, exceptions, and remediation commitments. Test relevant controls and record who accepted any residual risk and why.
For services supporting important functions, maintain a workable continuity and exit approach. Consider data access and portability, transition assistance, dependencies on the provider or its subcontractors, and constraints on substituting another provider. Reassess concentration and substitutability over time rather than assuming an alternative will be available when needed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Organize evidence so it can be traced to a control owner
For each material software or ICT supplier, maintain an evidence set that connects the risk decision to the service and its oversight. A practical evidence pack includes:
- The service and function mapping, classification rationale, inventory entry, and applicable register record.
- Current due diligence, provider security evidence, and documented risk decisions.
- The signed agreement and amendments, including relevant subcontracting and oversight provisions.
- Software development, dependency, vulnerability, and provenance records where applicable.
- Review results, testing and audit records, incidents, exceptions, remediation owners, and closure evidence.
- Continuity and exit planning records, with evidence that assumptions about transition and data access have been considered.
Make records current, findable, and attributable to a responsible owner and review date. NIST practices can help structure supplier assurance and software provenance evidence, while DORA supplies the legal baseline for covered entities.
Choose tools by the control work they support
Software composition analysis and SBOM tools can help identify dependencies, match components to vulnerabilities, and route findings into remediation. Compare direct and transitive dependency coverage, supported formats, update cadence, prioritization, provenance support, build-pipeline integration, and evidence export. Third-party risk or GRC tools can support ICT-service and function mapping, register workflows, subcontractor tracking, contract and audit-right tracking, evidence retention, and reporting.
For either category, also assess security and deployment model, interoperability, operational effort, access controls, and data export or exit terms. A platform can support evidence workflows; purchasing it does not itself achieve compliance, and no product is established here as endorsed or guaranteed to satisfy DORA.
Keep the legal baseline current
DORA has applied since 17 January 2025. The European Banking Authority reports that its ICT and security risk-management guidelines were narrowed in light of harmonized DORA requirements and lists 20 May 2025 as the compliance deadline for the amended guidelines. For a current implementation decision, use the regulation, applicable delegated and implementing measures, relevant supervisory guidance, and the institution’s actual contracts and services—not an undated generic checklist.
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