Third-Party Management Policy Writers
What are Third-Party Management Policies?
Third-party management policies outline how organisations assess, monitor and control risks associated with external suppliers, vendors and service providers that have access to IT systems, data or infrastructure.
Third parties can introduce vulnerabilities if not managed effectively. A clear policy ensures that risks are identified, security standards are upheld, and contractual relationships protect the organisation and its stakeholders.
What Do Third-Party Management Policies Cover?
A third-party management policy typically includes:
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Procedures for due diligence and risk assessment of IT suppliers and service providers
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Requirements for contractual clauses covering data protection, confidentiality and security standards
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Ongoing monitoring of supplier performance and compliance with IT requirements
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Access control procedures for third parties connecting to systems or handling data
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Incident reporting obligations for suppliers in the event of data breaches or service failures
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Processes for managing and reviewing service level agreements (SLAs)
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Termination procedures to ensure data and system access are removed promptly
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Responsibilities of managers and IT teams in managing supplier relationships
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Links to information security, procurement, risk management and sanctions compliance policies
A clear policy helps ensure that suppliers meet the same IT security and compliance standards expected within the organisation.
It also supports compliance with UK GDPR, the Data Protection Act 2018, ISO/IEC 27001 and other industry frameworks that require oversight of third-party risks.
By embedding strong third-party management practices, organisations can reduce vulnerabilities, protect sensitive information and strengthen resilience across their IT supply chain.
Legal Basis and Standards
Third-party risk management is shaped by ISO 27001:2022 controls 5.19 to 5.23 (supplier relationships, including ICT services), the FCA's Outsourcing rules (SYSC 8 and the operational resilience framework), the EBA Outsourcing Guidelines (where in scope), UK GDPR Article 28, and the Telecommunications (Security) Act 2021 for telecoms operators.
The forthcoming Cyber Security and Resilience Bill expands NIS-style duties to managed service providers and data centres.
Common Compliance Pitfalls
- Outsourcing register incomplete or out of date.
- Critical or important services not flagged or notified to the FCA where required.
- Subcontracting and onward outsourcing not approved or even visible.
- Right-to-audit clauses present in contract but never exercised.
- Exit and reversibility plans absent for material services.
What Policy Pros Delivers
Our Third-Party Management Policy package includes the main policy, an outsourcing register template, a criticality-classification framework, a due-diligence questionnaire, a contractual schedule covering audit, security and exit, a subcontracting approval procedure, and an exit and reversibility template.
Frequently Asked Questions
What is "material outsourcing" for FCA-regulated firms?
Outsourcing is material if its failure could have a significant impact on the firm's ability to meet its regulatory obligations or to continue operating. Material outsourcing must be notified to the FCA and reflected in the operational resilience framework.
Should our right-to-audit clause specify SOC 2 or ISO 27001?
Specify the assurance evidence acceptable in lieu of an on-site audit. SOC 2 Type II reports and ISO 27001 certificates are commonly accepted; the contract should retain the right to on-site audit for cause.
Do we need a documented exit plan for every supplier?
For material and important suppliers, yes. NCSC and FCA guidance both expect exit and reversibility plans for significant cloud or critical-service suppliers, including data return, transition support and any contractual lock-out windows.
