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SPC / SPC-04

Security assurance case and accreditation support

Assemble evidence and decisions enabling a competent authority to accept a system’s risks within a defined framework. The provider prepares the case; it does not replace the decision-maker or grant accreditation merely by delivering a service.

WHEN IT HELPS

A focused response
to a defined need.

System requiring accreditation, public-sector or sensitive project, production release needing a security case or renewal of an existing decision.

AT A GLANCE

Family
Specialist security

Engagement
Specialist expertise

Reference
SPC-04

SCOPE & OUTCOMES

What the engagement covers.

Scope

  • Applicable framework
  • authority
  • scope
  • risk assessment
  • requirements
  • architecture
  • audit evidence
  • treatment plan
  • residual risks
  • operating and review conditions

Deliverables

  • Structured case
  • requirements/evidence matrix
  • risk assessment
  • action plan
  • residual-risk summary
  • decision-board support
  • review schedule

Acceptance evidence

The case is complete for the agreed scope; evidence is traceable; conditions and risks are honestly presented; the authority retains the decision; case maintenance is organised.

DELIVERY

How the work is structured.

Approach

Verify expertise and authorisation; scope constraints; collect without unapproved risk; assess and propose; validate with competent owners.

Prerequisites & responsibilities

Customer: decision authority, operators, control engineers or transaction leads as applicable. Provider: validated expertise; specialist partners where needed and approved.

Scope factors

Sites, systems, safety, evidence access, independence and qualification requirements. Bespoke engagement; effort and subcontracting confirmed before proposal.

Questions to clarify

Which authority decides and under what framework? Which evidence is required? Which changes trigger review and which conditions are acceptable?

IMPORTANT BOUNDARIES

Any required assessor qualification, independence or framework-specific condition is established before engagement. The work supports an assurance decision; it does not guarantee a favourable outcome.

Delivery is conditional on the specialist resources, authorisations and framework requirements established during scoping. Formal qualifications and clearance are confirmed where required.

IN PRACTICE

Illustrative situations.

These examples describe possible engagements and target outcomes. They are not customer references or achieved results.

Scenario 01

An organisation prepares a sensitive new portal. Project: organise risks, architecture and test results into one case. Target outcome: a decision based on coherent evidence, with explicit conditions where controls remain unfinished.

Scenario 02

A system changes after initial approval. Project: assess changes and update affected evidence. Target outcome: proportionate reassessment; the old decision is not presented as automatically covering the new architecture.

Technology and reference context

References: ANSSI accreditation approach and applicable risk assessment; document and evidence-tracking tools.

The final technology set is agreed during scoping, based on interoperability, licensing, access rights and operating requirements.

CONNECTED SERVICES

Build the next step.

These services can complement the engagement. They are not automatically included.

START A CONVERSATION

Make the scope clear.

We will clarify the objective, dependencies and responsibilities of this service before proposing delivery.