Roles and Responsibilities for Anti-Malware

“Roles and responsibilities” sounds like paperwork until you hit an incident or a QSA asks who approves exclusions, who monitors detections, and who ensures coverage on new assets. PCI DSS 4.0.1 Requirement 5.1.2 makes that accountability explicit: the anti-malware program only counts if the people doing the work are clearly identified and actually know what they own. (PCI DSS v4.0.1 Requirement 5.1.2)

For a Compliance Officer, CCO, or GRC lead, the fastest path is to treat this as an operating model requirement, not a policy statement. You need a durable assignment mechanism (RACI plus system ownership mapping), a communication mechanism (training, runbooks, and handoffs), and an evidence mechanism (tickets, approvals, and logs that show the right people performed the right actions). The goal is simple: no anti-malware task should be “everyone’s job,” because in practice that becomes nobody’s job.

This page gives requirement-level guidance you can implement quickly and defend during assessment, with steps, artifacts, and audit-ready questions focused on how QSAs and internal auditors evaluate “documented, assigned, and understood.”

Regulatory text

Requirement: “Roles and responsibilities for performing activities in Requirement 5 are documented, assigned, and understood.” (PCI DSS v4.0.1 Requirement 5.1.2)

Operator interpretation (plain English)

You must be able to show, on demand:

1. Documented: Written responsibilities exist for the anti-malware activities required by PCI DSS Requirement 5 (not just “Security is responsible for anti-malware”). (PCI DSS v4.0.1 Requirement 5.1.2)
2. Assigned: Those responsibilities are tied to specific roles or job functions, and in practice to specific teams or named individuals for your environment. (PCI DSS v4.0.1 Requirement 5.1.2)
3. Understood: The people in those roles acknowledge and demonstrate they understand what they must do (approvals, monitoring, response, reporting, and upkeep). (PCI DSS v4.0.1 Requirement 5.1.2)

This requirement is assessed through interviews and evidence trails. If execution is inconsistent, the “documented” piece will not save you.

Who it applies to

Entity scope

Applies to merchants, service providers, and payment processors that must comply with PCI DSS and have systems in scope for Requirement 5 anti-malware activities. (PCI DSS v4.0.1 Requirement 5.1.2)

Operational scope (where it shows up)

You will need clear roles and responsibilities anywhere anti-malware decisions occur, including:

• Corporate endpoints used to administer the cardholder data environment (CDE) or connected systems.
• Servers and workloads (on-prem and cloud) that support payment flows or provide administrative access paths.
• Virtual desktop environments, jump hosts, and privileged access workstations.
• Managed services where a third party runs endpoint protection or monitoring on your behalf.

If a third party performs anti-malware operations, you still need internal ownership for oversight, acceptance of risk, and validation that responsibilities are fulfilled.

What you actually need to do (step-by-step)

Step 1: Inventory Requirement 5 activities you actually perform

List the activities your anti-malware program requires in your environment, then align each to an owner. Start with these task buckets (adapt to your tooling):

• Tool ownership (endpoint protection platform administration, policy configuration)
• Deployment and coverage (agent installation, onboarding new assets, drift remediation)
• Signature/content updates and platform upgrades
• Alert monitoring and triage
• Incident response handoff (containment, eradication steps, escalation)
• Exception handling (exclusions, suppressions, tamper protection overrides)
• Reporting and metrics (coverage, detections, SLA adherence)
• Access control for the tool (who can change policies)
• Evidence collection for assessments

Your output should be a single page list you can map to a RACI.

Step 2: Build a Requirement 5 RACI matrix

Create a RACI (Responsible, Accountable, Consulted, Informed) table for the activities above.

Practical RACI rules that reduce audit pain

• One “A” per activity. If two teams share accountability, you have no accountability.
• “R” can be shared, but only if the handoffs are written.
• Tie “A” to a role that exists even during org changes (e.g., “Endpoint Engineering Manager”), and optionally map current name(s) in an appendix.

Example RACI rows (illustrative)

• Approve anti-malware exclusions: A = CISO delegate / Security Engineering lead; R = Endpoint Security; C = App owner; I = Compliance
• Monitor high-severity detections: A = SOC manager; R = SOC; C = Endpoint Security; I = IT Ops
• Ensure coverage on new endpoints: A = EUC/Endpoint Ops lead; R = Desktop Support; C = Security; I = Compliance

Step 3: Map responsibilities to in-scope assets and system owners

A common gap: roles are defined, but no one can show they apply to the CDE-connected assets that matter.

Create a mapping between:

• Asset groups (workstations, Windows servers, Linux servers, VDI pools, cloud instances)
• Business/system owners
• Anti-malware policy profiles applied
• Team accountable for coverage and exception approvals

This makes interviews easy: “Who owns anti-malware on jump hosts?” has a crisp answer.

Step 4: Create operating procedures that match the RACI

Policies do not prove “understood.” Runbooks do.

Minimum procedures to write or confirm exist:

• Detection triage SOP: severity thresholds, routing, required containment steps, time expectations, escalation contacts.
• Exclusion request SOP: what qualifies, required justification, approval path, expiration/periodic review, rollback steps.
• Deployment SOP: onboarding new builds, golden images, agent health checks, remediation steps for failed installs.
• Change control touchpoints: how policy changes are requested, tested, approved, and documented.

Keep procedures short and operational. Link them from the RACI or embed them in the same document set.

Step 5: Prove “understood” with a lightweight attestation and targeted training

You need evidence that assigned personnel understand their responsibilities. Options:

• Annual (or role-change) responsibility attestation: “I have read the anti-malware RACI and SOPs and understand my responsibilities.”
• Tool-specific training for administrators and SOC workflows for responders.
• Tabletop exercises that include anti-malware escalation and exception decisions.

Store artifacts centrally so you can produce them without chasing managers.

Step 6: Put the work on rails with tickets, approvals, and review cadences

Auditors trust systems of record more than email.

Operationalize with:

• Ticket categories for exclusions, policy changes, and agent deployment issues.
• Approval workflows tied to accountable roles.
• A recurring review where owners validate coverage and open exceptions.

If you run Daydream for compliance operations, this is where it fits: use it to assign control ownership, collect attestations, and maintain an always-current evidence package for Requirement 5 role ownership and execution.

Required evidence and artifacts to retain

Maintain a tight evidence set that maps directly to “documented, assigned, understood”:

Documented

• Requirement 5 Roles & Responsibilities document (or control narrative) covering anti-malware activities. (PCI DSS v4.0.1 Requirement 5.1.2)
• RACI matrix for Requirement 5 tasks.
• SOPs/runbooks for exclusions, monitoring, response, and deployment.

Assigned

• Org chart extract or team ownership register showing the roles exist.
• System/asset-to-owner mapping for in-scope environments.
• Access control list / role-based access mapping for the anti-malware admin console (who can change policy).

Understood (and performed)

• Training records or role responsibility attestations.
• Sample tickets showing approvals and execution (exclusions, policy changes, incident escalations).
• Meeting notes or review sign-offs for coverage/exception reviews.
• Interview-ready contact list (named primary/backup for each responsibility).

Common exam/audit questions and hangups

Expect questions like:

• “Show me who is accountable for anti-malware on these in-scope systems.” (PCI DSS v4.0.1 Requirement 5.1.2)
• “Who can approve an exclusion, and where is that documented?” (PCI DSS v4.0.1 Requirement 5.1.2)
• “How do you know the SOC follows the escalation path for malware detections?” (PCI DSS v4.0.1 Requirement 5.1.2)
• “If the endpoint tool is managed by a third party, what do you own internally?” (PCI DSS v4.0.1 Requirement 5.1.2)
• “How do you ensure new assets get coverage?” (PCI DSS v4.0.1 Requirement 5.1.2)

Hangups that trigger deeper sampling:

• Responsibilities exist only in a high-level policy without a task-to-role mapping.
• Multiple “accountable” owners or a missing owner for exceptions.
• No evidence of staff acknowledgment or training.
• Tool admin access granted broadly, conflicting with stated roles.

Frequent implementation mistakes (and how to avoid them)

Mistake 1: Writing a policy that says “IT is responsible”

Fix: Publish a RACI that names accountable roles for each anti-malware activity and map those roles to in-scope asset groups. (PCI DSS v4.0.1 Requirement 5.1.2)

Mistake 2: Treating exceptions as “local admin discretion”

Fix: Centralize exclusions with a formal request and approval workflow, and require business justification plus Security sign-off. Keep the approval evidence. (PCI DSS v4.0.1 Requirement 5.1.2)

Mistake 3: Ignoring third-party responsibilities

Fix: If a third party manages endpoint protection, document shared responsibility: what they do (monitoring, updates) and what you do (oversight, approvals, evidence retrieval). (PCI DSS v4.0.1 Requirement 5.1.2)

Mistake 4: No proof that people understand their role

Fix: Add an attestation step and keep training records for tool admins and responders. During audits, pair this with tickets that show the process is used. (PCI DSS v4.0.1 Requirement 5.1.2)

Mistake 5: Ownership breaks during reorgs

Fix: Tie accountability to durable roles, and add a trigger: HR role change or team reorg requires updating the RACI and re-issuing attestations.

Enforcement context and risk implications

No public enforcement cases were provided in the source catalog for this requirement, so you should treat it as an assessment-driven control: failure typically shows up as a PCI assessment finding because you cannot demonstrate governance over anti-malware operations. (PCI DSS v4.0.1 Requirement 5.1.2)

Operationally, unclear responsibility produces predictable failure modes:

• Delayed response to malware detections because SOC and IT disagree on who owns containment.
• “Temporary” exclusions that never expire.
• Coverage gaps on new or rebuilt assets.
• Overprivileged tool access that increases the blast radius of admin compromise.

A practical 30/60/90-day execution plan

First 30 days (establish ownership)

• Identify in-scope asset groups and the anti-malware tooling in place.
• Draft the Requirement 5 RACI with named accountable roles for each activity. (PCI DSS v4.0.1 Requirement 5.1.2)
• Confirm tool admin access aligns with the RACI, and open tickets to remove or justify mismatches.
• Publish a single source of truth (GRC repository or controlled document) and socialize it with IT, Security, and affected third parties. (PCI DSS v4.0.1 Requirement 5.1.2)

Days 31–60 (make it executable)

• Write or tighten the SOPs for detection triage, exclusions, deployment/health, and change control.
• Implement ticket workflows for exclusions and policy changes with required approvers.
• Collect initial role attestations and training completion for admins/responders. (PCI DSS v4.0.1 Requirement 5.1.2)
• Start a recurring operational review (coverage, open exceptions, major detections) with documented outcomes.

Days 61–90 (make it auditable and durable)

• Run an internal “mock interview” using audit questions; fix any weak answers and missing artifacts.
• Sample a small set of recent tickets and confirm they show the right approvers and actions.
• Formalize the ongoing maintenance trigger (reorg, new tool, new asset class, new third-party arrangement).
• If you use Daydream, configure control ownership, evidence requests, and attestations so Requirement 5.1.2 stays current without manual chasing.

Frequently Asked Questions

Do I need to name specific people, or are roles enough?

Start with roles to keep it durable, then maintain a current mapping to named individuals for operations and audit interviews. Auditors commonly ask for the specific owner for a given in-scope system, so have a way to answer quickly. (PCI DSS v4.0.1 Requirement 5.1.2)

What does “understood” mean in practice?

It means you can show the assigned teams acknowledge their responsibilities and follow the procedures. Training records, attestations, and tickets that demonstrate execution are the most defensible proof. (PCI DSS v4.0.1 Requirement 5.1.2)

If our MSSP manages malware monitoring, are we still responsible?

Yes, you still need documented internal accountability for oversight, exception approvals, and ensuring evidence can be produced. Document the shared responsibility boundary and keep it aligned with your RACI. (PCI DSS v4.0.1 Requirement 5.1.2)

Where do anti-malware exclusions belong: security policy, change management, or an SOP?

Put the governing rule in policy, and put the operational steps in an SOP tied to a ticket workflow. The key is consistent approval and a retrievable record of each exception decision. (PCI DSS v4.0.1 Requirement 5.1.2)

How do we handle DevOps-owned servers where security doesn’t have admin rights?

Assign accountability explicitly: security can own standards and approvals, while the platform team owns deployment execution. Document the handoff and keep evidence that required actions occur. (PCI DSS v4.0.1 Requirement 5.1.2)

What evidence is “enough” for an assessment?

A clear RACI, supporting procedures, proof of communication/training, and a small set of real operational records (tickets/approvals/logs) that match the stated responsibilities. If any element is missing, assessments tend to expand sampling. (PCI DSS v4.0.1 Requirement 5.1.2)