Third party risk management is the process of identifying, assessing, monitoring, and managing the risks that come from working with external organizations. These third parties can include suppliers, vendors, contractors, service providers, consultants, technology providers, outsourced partners, and other external relationships.
In governance, risk, and compliance (GRC), third party risk management matters because organizations are increasingly dependent on external parties to deliver critical services. If a third party fails, is breached, breaks a regulatory requirement, or creates an ethical issue, the impact can quickly become your organization’s risk.
The US banking agencies’ Interagency Guidance on Third-Party Relationships describes third-party risk management as something that should be risk-based and proportionate to the organization’s risk profile, complexity, and the criticality of the activity supported by the third party.
The guidance makes 1 point very clear: third-party risk management is not just a procurement exercise. It is an ongoing risk management activity.
ORIGINS
Why has third party risk management become so important?
Third party risk management has become more important because organizations now rely on complex supplier ecosystems.
A single organization may depend on hundreds or thousands of external parties for technology, data processing, logistics, professional services, outsourcing, cloud services, payments, healthcare services, maintenance, customer support, and critical operations.
That creates risk across multiple areas, including:
- cyber security
- data privacy
- operational resilience
- regulatory compliance
- financial stability
- sanctions and adverse media
- bribery and corruption
- human rights and modern slavery
- environmental and social risk
- business continuity
- reputational risk
- concentration risk
Regulators are also paying closer attention. The Digital Operational Resilience Act (DORA) establishes an EU-wide oversight framework for critical ICT third-party providers and aims to address systemic and concentration risks created by financial sector reliance on a limited number of ICT providers.
NIST Cybersecurity Framework 2.0 also brings supply chain risk into its Govern function, connecting cybersecurity supply chain risk management with broader enterprise risk management.
The direction of travel is clear. Organizations need to understand not only their own risk posture, but also the risk created by the external ecosystem they rely on.
PROCESS
Why does third party risk management matter?
Third party risk management matters because outsourcing a service does not outsource accountability.
A third party may process sensitive data, access systems, support critical operations, provide regulated services, or interact with customers. If that third party fails, the organization may still face operational disruption, regulatory scrutiny, financial loss, or reputational damage.
The cyber risk is especially clear.
The World Economic Forum’s Global Cybersecurity Outlook 2026 found that 65% of large companies by revenue said third-party and supply chain vulnerabilities were their greatest cyber resilience challenge, up from 54% in 2025.
The 2026 Verizon DBIR reported that breaches involving an organization’s supply chain increased by 60%, with third-party breaches featuring in 48% of breaches, according to coverage of the report by Help Net Security.
Strong third party risk management helps organizations:
- understand who they are working with
- assess risk before onboarding
- apply due diligence based on risk level
- define contractual and control requirements
- monitor critical third parties over time
- manage cyber, privacy, compliance, resilience, financial, and reputational risk
- track issues and remediation
- maintain evidence for audit and regulatory scrutiny
- report clearly to leadership and boards
- make better decisions about onboarding, renewal, escalation, or exit
The key word is ongoing. A supplier that looked low risk at onboarding may become higher risk later because of a cyber incident, sanctions exposure, ownership change, financial distress, litigation, service failure, or regulatory development.
What does third party risk management look like in practice?
In practice, third party risk management usually involves:
- identifying and classifying third parties
- assessing inherent risk before onboarding
- collecting due diligence information and evidence
- reviewing certifications, policies, controls, contracts, SOC reports, and audit reports
- screening for sanctions, adverse media, ownership links, conflicts, and red flags
- assessing cyber security and data privacy risk
- reviewing business continuity and resilience arrangements
- defining contractual requirements and service-level expectations
- approving or rejecting third-party relationships based on risk
- monitoring critical suppliers over time
- tracking issues, actions, exceptions, and remediation
- reporting third-party risk to leadership, committees, and the board
- reviewing third parties at renewal, change, or exit
The process should be risk-based. A low-risk office supplier should not require the same level of due diligence as a cloud provider hosting sensitive customer data or a supplier supporting a critical business service.
PEOPLE
Who is responsible for third party risk management?
Third party risk management often sits across several teams. Procurement may own the sourcing process, but risk accountability usually reaches much further.
Common stakeholders include:
1. The board and senior leadership
The board and senior leadership oversee material third-party risk, especially where suppliers support critical operations, regulated activities, sensitive data, or strategic objectives.
2. Procurement teams
Procurement teams manage sourcing, supplier onboarding, contract processes, renewals, and supplier relationship management.
3. Risk teams
Risk teams help design the third-party risk framework, define assessment methods, challenge risk ratings, and report material third-party exposures.
4. Compliance teams
Compliance teams assess regulatory obligations, sanctions exposure, anti-bribery and corruption risks, conflicts of interest, policy requirements, and third-party compliance evidence.
5. Cyber security and IT teams
Cyber security and IT teams assess technical risk, system access, data protection, resilience, cloud controls, vulnerabilities, and incident response arrangements.
6. Data privacy teams
Data privacy teams assess whether third parties process personal data and whether the right data protection controls, contracts, and safeguards are in place.
7. Legal teams
Legal teams support contract terms, liability, audit rights, data processing clauses, termination rights, and regulatory requirements.
8. Business owners
Business owners understand the purpose of the third-party relationship and are usually responsible for managing performance, issues, and ongoing risk.
9. Internal audit and assurance teams
Internal audit and assurance teams review whether the third-party risk management framework is operating effectively.
Third party risk management works best when ownership is clear from the start. The supplier relationship may begin with procurement, but risk ownership should follow the business service the third party supports.
TECHNOLOGY
What do good third party risk management tools look like?
Good third party risk management tools should help organizations manage the full third-party lifecycle, not just send questionnaires.
A questionnaire may still have a role. But if the process depends entirely on manual forms, email chains, shared folders, and spreadsheets, teams can struggle to see which suppliers matter most, what evidence has been collected, what risks remain open, and what has changed over time.
Strong third party risk management tools should support:
- third-party inventory and classification
- inherent risk assessment
- risk-based due diligence
- automated onboarding workflows
- document and evidence collection
- questionnaire management where appropriate
- external data and intelligence integrations
- cyber risk monitoring
- sanctions, adverse media, and ownership screening
- contract and control requirement tracking
- issue, exception, and remediation management
- approval and escalation workflows
- renewal and review cycles
- exit and offboarding controls
- dashboards and reporting
- audit trails and evidence records
- role-based access for sensitive supplier information
The goal is to help teams focus due diligence where risk is highest and keep oversight active after onboarding.
How CoreStream GRC helps with third party risk management
The CoreStream GRC point of view is simple: third party risk management should be risk-based, evidence-led, and connected.
Many organizations still manage third-party risk through spreadsheets, static questionnaires, shared folders, and email approvals. That makes the process slow for suppliers, hard to report, and difficult to evidence when leadership, auditors, or regulators ask what happened.
CoreStream GRC’s Third Party Risk Management solution helps teams manage the full third-party lifecycle, from onboarding and assessment to approval, monitoring, remediation, renewal, and reporting.
The platform supports:
- tailored inherent risk assessments
- risk-based workflows
- evidence collection
- supplier questionnaires where needed
- approvals and escalations
- issue and remediation tracking
- contract and service-level visibility
- reporting by supplier, risk category, business area, region, or relationship type
- audit trails showing decisions, approvals, and evidence
CoreStream GRC also supports a smarter approach to due diligence through integrations. The SANNOS and CoreStream GRC partnership supports AI-driven third party risk management and faster vendor onboarding by helping map vendor evidence to requirements, flag gaps, and generate a clearer path to compliance.
Our article Is the vendor risk assessment dead? also sets out the value of moving toward a more evidence-based assessment model. Instead of starting every assessment with a long questionnaire, teams can use available evidence, external intelligence, and targeted follow-up to focus on the risks that matter.
The aim is not to remove judgment. It is to reduce repetitive work so teams can spend more time making risk-based decisions.
Common challenges with third party risk management
Organizations often struggle with third party risk management when:
- supplier inventories are incomplete or out of date
- onboarding relies on spreadsheets and email approvals
- every supplier receives the same questionnaire regardless of risk
- due diligence happens once and is not monitored over time
- cyber, privacy, legal, procurement, compliance, and risk teams work in silos
- supplier evidence is hard to find
- external risk signals are not connected to the internal workflow
- issues and remediation actions are not tracked consistently
- critical suppliers are not clearly identified
- concentration risk is not visible
- reporting to leadership and boards is too manual
- contract obligations are not linked to ongoing monitoring
- exit and offboarding controls are weak
The practical question is simple: can the organization see which third parties matter most, what risks they create, what evidence supports the decision, and what has changed since onboarding?
Third party risk management best practices
Strong third party risk management usually depends on:
- a complete third-party inventory
- clear third-party classification
- risk-based due diligence
- proportionate questionnaires and evidence requests
- clear ownership between procurement, risk, compliance, cyber, privacy, legal, and the business
- documented approval and escalation routes
- contract requirements linked to risk level
- ongoing monitoring for critical third parties
- issue and remediation tracking
- regular review cycles
- exit and offboarding controls
- reporting that supports decisions, not just administration
- reliable evidence and audit trails
The best approach is risk-based. Not every third party needs the same assessment, but critical third parties need deeper oversight, clearer evidence, and stronger monitoring.
Recommended reads
- NIST Cybersecurity Framework 2.0
- World Economic Forum: Global Cybersecurity Outlook 2026
- EIOPA: Digital Operational Resilience Act
- OCC: Interagency Guidance on Third-Party Relationships
- CoreStream GRC: Third Party Risk Management software
- CoreStream GRC: Is the vendor risk assessment dead?
- CoreStream GRC: SANNOS AI integration
FAQs on third party risk management
Third party risk management is the process of managing the risks that come from working with external organizations. It helps teams assess suppliers, vendors, contractors, and service providers before and during the relationship.
Third party risk management is important because external organizations can create risk for your business. If a supplier suffers a cyber incident, fails to deliver a critical service, breaches compliance requirements, or exposes sensitive data, your organization may still be accountable for the impact.
Vendor risk management usually focuses on suppliers and vendors. Third party risk management is broader. It can include vendors, contractors, consultants, outsourced providers, technology providers, partners, and any external party that creates risk for the organization.
Examples of third party risk include cyber breaches, data privacy failures, supplier insolvency, operational disruption, poor service performance, sanctions exposure, bribery and corruption risk, regulatory non-compliance, reputational damage, and concentration risk.
A third party risk assessment should usually consider the type of service provided, access to data or systems, criticality, location, ownership, financial stability, cyber controls, privacy controls, regulatory obligations, business continuity, sanctions exposure, and evidence of control operation.
Third parties should be reviewed based on risk. Critical or high-risk third parties may need regular monitoring and formal review cycles. Lower-risk third parties may need lighter checks. Reviews should also happen when the relationship changes, a contract is renewed, or a new risk signal appears.
Third party risk management software helps organizations identify, assess, monitor, evidence, and report risks across external relationships. It should support supplier onboarding, due diligence, approvals, issue tracking, monitoring, reporting, and audit trails.
AI can help third party risk management by reviewing documentation, mapping evidence to requirements, flagging gaps, identifying red flags, and reducing repetitive manual review. Human oversight remains essential because final risk decisions still require context and judgment.
