Your Security Is Only as Strong as Your Weakest Vendor
Third Party Risk Assessment Services
A well secured business can still be breached through a poorly secured supplier. We assess the vendors, partners and integrations your organisation depends on, helping you build a due diligence process that stands up to regulatory and customer scrutiny.
- Certified Experts
- OSCP, CEH, CRTP & industry-certified testers.
- Real-World Approach
- Manual testing with real-world attack techniques.
- Actionable Reporting
- Detailed findings with clear risk ratings and remediation.
- Confidential & Secure
- Strict NDA, data protection & privacy practices.
// About Third Party Risk
Extending Security beyond Your Own Perimeter
Supply chain risk has become one of the fastest growing areas of regulatory focus. The UK NIS Regulations, ISO 27001 Annex A and, for firms operating in the EU, NIS2 and DORA all now expect organisations to actively assess and monitor the security posture of critical suppliers before and during a contract, not just at onboarding.
We help you build a practical vendor risk framework, from initial due diligence questionnaires to ongoing monitoring, so supplier risk is managed as a continuous process rather than a one-time checkbox during procurement.
- A Tiered Vendor Risk Framework
- UK and EU Supply Chain Alignment
- Practical Due Diligence Questionnaires
- Ongoing Monitoring, Not One-Off Checks
// Coverage
What We Cover
Vendor Inventory and Tiering
Identification and criticality ranking of every relevant third party.
Due Diligence Questionnaire Design
Development of assessment questionnaires proportionate to vendor risk tier.
Contractual Security Review
Assessment of whether existing contracts include adequate security requirements.
Data Access Mapping
Review of exactly what data and systems each vendor can reach.
Ongoing Monitoring Design
Setup of a process for periodic reassessment of critical suppliers.
Incident Escalation Pathways
Review of how supplier-related incidents would be identified and reported.
// Methodology
Our Assessment Process
- 01
Vendor Inventory
We help build a complete list of suppliers with access to your systems or data.
- 02
Criticality Tiering
We rank vendors by the level of risk they realistically introduce.
- 03
Due Diligence Review
We assess supplier security posture through questionnaires, documentation and available evidence.
- 04
Gap Identification
We flag vendors that fall short of your required security baseline.
- 05
Monitoring Framework Handover
You receive a process for keeping vendor risk under ongoing review.
// Ready when you are
Put your third party risk assessment services to the test.
// Impact
Why Third Party Risk Assessment Matters
Regulation Now Demands Continuous Due Diligence
UK and EU rules alike expect active, ongoing assessment of critical suppliers, not a one-time review.
// How We Assess Your Third Party Risk
- Vendor inventory and criticality tiering
- Due diligence questionnaire design and review
- Contractual security requirement review
- Data access and integration risk mapping
- Supplier security posture assessment
- Ongoing monitoring process design
- Incident notification and escalation pathway review
What you get
// Frameworks We Work Within
// Why Choose Pluto Cyber Security
Practical Vendor Risk Management, Not Just a Spreadsheet
Vendor risk programmes often collapse under their own paperwork. We build a tiered, proportionate process that focuses your attention on the suppliers that genuinely matter, rather than treating every vendor identically.
Regulatory Alignment
Our framework is built around UK NIS Regulations, ISO 27001 and, where relevant, NIS2 and DORA.
Tiered, Proportionate Approach
High-risk vendors get deeper scrutiny than low-risk ones.
Technical Assessment Capability
We can technically test critical vendors where contracts and access allow.
Sustainable Process Design
We build a process your team can actually maintain, not just a one-off report.
Focus depth on your highest-risk suppliers, typically those with direct access to sensitive data or critical systems. A tiered approach keeps the process proportionate rather than treating every vendor identically.
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Ready to Scope Your Third Party Risk Assessment Services?
Tell us what you need tested. We reply with honest guidance and a fixed-scope quote, usually within one business day.