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Third-Party & Vendor Risk Management

Know which suppliers matter, what they expose and what needs to be fixed.

BCS helps organisations assess vendor risk, perform due-diligence reviews, establish ongoing monitoring and govern remediation so supplier decisions are based on clearer evidence of extended-enterprise risk.

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The challenge

A third party can sit outside the organisation and still sit inside the risk.

Critical suppliers may process sensitive information, access internal systems, support core services or introduce dependencies that affect resilience. Yet many vendor reviews rely on the same questionnaire for every supplier, collect evidence once and then lose visibility after onboarding.

BCS helps build a risk-based model that distinguishes critical vendors from lower-risk suppliers, aligns due diligence to exposure and keeps remediation and monitoring visible through the lifecycle.

What BCS delivers

Supplier-risk decisions supported by classification, evidence and follow-through.

ASSESSMENT

Vendor risk assessments

Evaluate supplier exposure based on service criticality, data access, system connectivity and business dependency.

DUE DILIGENCE

Evidence-based review

Review responses and supporting evidence rather than relying on unchecked questionnaires.

MONITORING

Ongoing oversight

Define recurring review, trigger events and monitoring expectations based on supplier risk tier.

REMEDIATION

Issue governance

Track accepted risk, corrective actions, exceptions and supplier commitments through closure.

Key areas of support

Put more scrutiny where supplier exposure is highest.

Risk classificationTier suppliers using data sensitivity, access, criticality, connectivity and dependency.
Due-diligence designRight-size questionnaires and evidence requirements by risk tier and service context.
Control evidence reviewAssess supplied policies, certifications, assurance reports and relevant supporting evidence.
Risk acceptanceMake exceptions and accepted risk visible to appropriate business decision-makers.
Ongoing monitoringEstablish review frequencies and event-driven reassessment for material suppliers.
Remediation trackingKeep supplier gaps, actions, dates, owners and closure evidence visible.
How we work

Manage the vendor lifecycle according to risk.

01 — CLASSIFY

Understand exposure

Identify what the supplier does, what it accesses and how failure could affect the business.

02 — ASSESS

Review controls

Perform due diligence using proportionate questions and evidence.

03 — DECIDE

Treat the risk

Remediate, contractually address, accept or avoid material supplier risk.

04 — MONITOR

Maintain visibility

Reassess based on time, change, incidents or other risk-relevant events.

Typical deliverables

A third-party risk model the business can operate.

Vendor risk methodologyClassification criteria, review depth, decision rules and governance expectations.
Due-diligence assessmentsSupplier risk findings supported by evidence and context.
Vendor risk registerCriticality, inherent risk, residual risk, exceptions, owners and actions.
Remediation and monitoring planTracked supplier actions and recurring oversight requirements.
Business outcomes

Make supplier risk a managed business decision.

Better vendor prioritisationCritical suppliers receive scrutiny proportional to their exposure.
Stronger due diligenceDecisions rely more on evidence and less on unchecked self-attestation.
Clearer risk acceptanceExceptions and accepted supplier risk are visible to the right decision-makers.
Improved ongoing visibilityMaterial supplier risk is monitored beyond the onboarding stage.
Who this is for

For organisations whose suppliers touch important systems, data or services.

Procurement and vendor-management teamsWho need a consistent security and technology-risk process around sourcing decisions.
Security and risk teamsWho need better visibility over extended-enterprise risk and remediation.
Regulated organisationsWhere third-party oversight is an explicit governance or regulatory expectation.
Organisations with a large supplier baseWhere risk tiering is necessary to use assessment resources efficiently.
Related services

Connect third-party oversight to wider governance.

Governance, Risk & ComplianceIntegrate supplier risk into enterprise governance →Data Privacy & ProtectionStrengthen data-handling expectations across processors →IT Audit & AssuranceReview control assurance and evidence more broadly →
FAQ

Common questions.

Do all vendors need the same assessment?

No. A risk-based programme should vary assessment depth according to data access, system connectivity, criticality, business dependency and other material exposure factors.

Can you review existing vendor questionnaires?

Yes. BCS can rationalise questions, align them to risk tiers and improve how evidence is requested and assessed.

What happens if a supplier has control gaps?

The appropriate response depends on materiality. Options may include remediation, contractual commitments, compensating controls, risk acceptance or selecting an alternative supplier.

Can you support ongoing monitoring?

Yes. Ongoing monitoring and remediation tracking are part of the stated service scope.

Make third-party risk visible before it becomes your incident.

Start with the suppliers, systems or data flows creating the most uncertainty.

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