RACI for ISO 27001 Implementation and Operation

A RACI matrix can clarify who performs, owns, advises on and receives information about ISO 27001 work. It can also create false confidence if every row names a department, several people are marked accountable or the matrix ends when the implementation project closes.

ISO/IEC 27001 requires relevant roles, responsibilities and authorities to be assigned and communicated. It does not mandate RACI. Used carefully, RACI is an AuditPrepared governance technique that makes those assignments understandable and testable across both implementation and routine ISMS operation.

Define the four roles precisely

• Responsible: performs the work and produces the result. More than one role may contribute, but excessive assignments make coordination difficult.
• Accountable: ultimately owns the outcome and decision. Prefer one accountable role for each row.
• Consulted: provides input before a decision or activity is completed; communication is two-way.
• Informed: receives necessary information after or during progress; communication is primarily one-way.

RACI does not define competence, authority limits, segregation of duties or evidence by itself. These need supporting role descriptions, procedures and governance.

ISO’s official overview describes ISO/IEC 27001 as a management-system requirements standard. The matrix should therefore cover governance, operation, evaluation and improvement—not only document creation.

Separate implementation from ongoing operation

Projects have sponsors, milestones and work packages. Operating controls have owners, operators, reviewers and recurring evidence. A person accountable for implementing a tool may not own the control outcome after handover.

Create two connected views:

1. Implementation RACI: scope, risk method, treatment design, control delivery, training, internal audit and certification readiness.
2. Operating RACI: risk review, access, incidents, suppliers, monitoring, internal audit, management review and corrective action.

Record the transition date and acceptance by operational owners. The WBS guide for complex ISO 27001 controls shows how responsibility moves from deliverables into sustained control operation.

Choose rows that produce outcomes

Avoid a matrix with vague headings such as “ISO 27001” or “security.” Each row should describe a decision or deliverable:

• approve ISMS scope;
• maintain the risk method;
• identify and evaluate risk;
• approve treatment and residual risk;
• maintain the Statement of Applicability;
• design and operate a selected control;
• approve a control exception;
• evaluate information-security objectives;
• perform internal audit;
• conduct management review;
• investigate an incident; and
• approve corrective-action closure.

Granularity should match risk and organisational complexity. High-risk cross-functional processes often deserve more detailed rows.

Identify roles before names

Use stable roles such as top management, ISMS manager, service owner, risk owner, human resources, procurement, privacy, legal, security operations, internal audit and workforce member. Maintain a separate role-to-person record where assignments change frequently.

This prevents the matrix becoming obsolete after one employee leaves. It also makes delegation and acting arrangements easier to control.

Apply five assignment rules

One accountable role per row

Shared accountability often means nobody can make the final decision. If a committee is accountable, define its chair, authority and decision method.

At least one responsible role

A named owner without a performer leaves work undone. Where a supplier performs the activity, identify the internal role responsible for oversight.

Accountability follows authority

Do not make an analyst accountable for budget, risk acceptance or business-process enforcement if they lack authority.

Consultation must be necessary

Marking every stakeholder as consulted slows delivery and obscures whose input is required. Use informed status where no response is necessary.

Segregation constraints remain visible

The same person should not approve, perform and independently audit the same work where that would undermine objectivity. A RACI can reveal conflicts but does not resolve them automatically.

A practical implementation view

The following is an illustrative starting point, not a universal assignment.

Activity	Top management	ISMS lead	Risk or process owner	Control team	Internal audit
Approve scope and policy direction	A	R	C	I	I
Define risk method	I	R	A/C	C	C
Assess a business-process risk	I	C	A	R	I
Approve treatment resources	A	R	C	I	I
Implement a control	I	C	A	R	I
Evaluate implementation acceptance	I	C	A	R	C
Conduct internal audit	I	C	C	C	A/R
Complete management review	A	R	C	I	C

Adjust for the organisation’s authority model. Internal audit assignments must preserve objectivity and impartiality.

A practical operating view

Activity	Management	ISMS lead	Control owner	Operator	Assurance
Review material risk	I/A where escalated	R	A	C	C
Operate recurring control	I	C	A	R	I
Approve an exception	I/A by authority	C	R/A within authority	C	I
Monitor control performance	I	C	A	R	C
Escalate threshold breach	I	R	A	R	I
Correct a control failure	I	C	A	R	C
Verify effectiveness	I	C	C	C	A/R

Do not force every process into the same pattern. Risk acceptance may belong to a business risk owner; independent audit belongs to a competent, objective assurance role.

Add attributes RACI does not contain

For important roles, record:

• decision authority and limits;
• required competence;
• delegated or acting arrangements;
• escalation route;
• evidence produced;
• review frequency or trigger;
• segregation requirements; and
• system permissions needed.

The resource provision evidence guide helps connect assigned responsibility with the capacity and competence required to perform it.

Link roles to the Statement of Applicability

Each necessary control should have an accountable control owner and an identified operator. The Statement of Applicability or a connected register can point to these roles, implementation status, evidence and applicable procedures.

Use the Statement of Applicability builder to organise control-level responsibility, then validate it against approved risk decisions and the licensed standard.

Validate through scenarios

A workshop can produce a neat matrix while real decisions remain unclear. Test it using scenarios:

• a high-risk treatment is overdue;
• a supplier rejects a security requirement;
• an administrator needs emergency access;
• a monitoring KPI breaches its threshold;
• a serious incident affects personal information;
• an auditor reports a systemic nonconformity; or
• the control owner leaves unexpectedly.

Ask who detects the event, decides, performs, approves, communicates and retains evidence. Revise any row where participants give different answers.

Communicate and embed assignments

Approval alone does not demonstrate communication. Incorporate roles into:

• job or role descriptions;
• process documentation;
• system permissions and workflow routing;
• project plans and handover;
• objectives and performance discussions;
• training and competence arrangements;
• management forums; and
• supplier contracts where relevant.

Keep the RACI accessible to the people using it. Changes should trigger review of connected procedures, permissions and evidence ownership.

Control changes over time

Review the matrix after restructuring, outsourcing, acquisition, major technology change, finding or incident. Record owner, approver, effective date and revision reason.

Avoid a central matrix that conflicts with local documents. Identify the authoritative source and use references rather than copying assignments into many files.

Audit evidence and sampling

An auditor may:

1. inspect approved role assignments and authority;
2. interview accountable and responsible people;
3. compare the matrix with procedures and system permissions;
4. sample recent decisions and operating records;
5. trace escalation and exception approval;
6. evaluate competence for assigned work; and
7. test internal-audit independence.

The evidence register guide can organise role-based evidence sources. The readiness checker can identify missing ownership before an external assessment.

Pass

Every material outcome had one accountable role, capable performers and defined authority. Interviews and sampled records matched the assignments, and project handover established ongoing ownership.

Partial

The approved matrix was mostly accurate, but two control owners lacked documented decision limits and one supplier-operated process had no internal oversight role.

Fail

Several rows had multiple accountable departments, operational staff disagreed about escalation and the implementation team remained named after it had disbanded.

These examples illustrate evidence maturity rather than predetermined audit outcomes.

Common mistakes

Avoid:

• assigning departments with no named role owner;
• marking several roles accountable for one result;
• confusing the performer with the decision owner;
• making top management responsible for routine technical tasks;
• omitting suppliers and internal oversight;
• ignoring competence and authority;
• combining implementation and operation in one ambiguous row;
• assigning internal audit to work it designed; or
• approving the matrix without testing real scenarios.

The practical conclusion

An effective ISO 27001 RACI makes decisions and outcomes attributable. It uses one accountable role per activity, identifies capable performers, limits consultation and keeps authority and independence visible.

Build separate but connected views for implementation and operation. Test assignments against real scenarios, embed them in workflows and review them when the organisation changes. The matrix is useful only when people and evidence show that it reflects how the ISMS actually works.

The subject perspective was informed by Advisera’s article on RACI for ISO 27001 implementation, with roles and management-system context checked against current ISO sources.