The Importance of Reassessment Frequency Based on Third-Party Tiering

Effective Third-Party Risk Management (TPRM) necessitates regular reassessments to ensure ongoing compliance, security, and operational integrity. The frequency of these reassessments should be guided by the tiering of third-party vendors based on their risk levels and criticality to the organization. This article explores the best practices for determining reassessment frequency and the factors influencing these decisions.

Understanding Third-Party Tiering

Third-Party Tiering: Third-party tiering involves categorizing vendors based on their risk levels and criticality. Typically, vendors are grouped into tiers such as high, medium, and low. High-tier vendors are critical to operations and pose significant risks, whereas low-tier vendors have minimal impact and lower risk profiles.

Factors in Tiering:

  • Risk Level: Assessed based on cybersecurity, financial stability, compliance, and operational reliability.
  • Criticality: Determined by the vendor’s role in core business functions and the potential impact of their failure on operations.

Reassessment Frequency Based on Tiering

High-Tier Vendors:

  • Frequency: Quarterly or semi-annual reassessments.
  • Rationale: These vendors are critical to operations and pose significant risks. Frequent reassessments ensure that any changes in their risk profile or compliance status are promptly identified and addressed.
  • Activities: Detailed risk assessments, compliance checks, cybersecurity audits, and performance evaluations.

Medium-Tier Vendors:

  • Frequency: Semi-annual or annual reassessments.
  • Rationale: While important, these vendors do not have the same level of criticality or risk as high-tier vendors. Regular reassessments help maintain oversight without the need for as frequent evaluations.
  • Activities: Risk assessments, compliance reviews, and performance monitoring.

Low-Tier Vendors:

  • Frequency: Annual or biennial reassessments.
  • Rationale: These vendors have minimal impact on operations and pose lower risks. Less frequent reassessments are sufficient to ensure they continue to meet basic requirements.
  • Activities: Basic risk assessments and compliance checks.

Factors Influencing Reassessment Frequency

1. Vendor Performance and Changes

Performance Monitoring: Continuous monitoring of vendor performance can trigger reassessments. Significant changes in performance, such as service disruptions or quality issues, may necessitate more frequent evaluations.

Changes in Vendor Operations: Changes in the vendor’s business operations, such as mergers, acquisitions, or changes in leadership, can impact their risk profile and should prompt reassessment.

2. Regulatory and Compliance Requirements

Regulatory Changes: Updates to relevant regulations and compliance standards can influence reassessment frequency. Ensure reassessments align with new regulatory requirements.

Compliance Status: Vendors with a history of compliance issues may require more frequent reassessments to ensure ongoing adherence to regulatory standards.

3. Cybersecurity Threat Landscape

Emerging Threats: The evolving cybersecurity threat landscape can impact reassessment frequency. High-tier vendors, in particular, should be reassessed more frequently in response to emerging threats and vulnerabilities.

Incident Response: Security incidents involving third-party vendors should trigger immediate reassessments to evaluate the impact and implement corrective actions.

4. Business Continuity and Disaster Recovery

Critical Business Functions: Vendors supporting critical business functions require frequent reassessments to ensure their disaster recovery and business continuity plans are effective and up-to-date.

Disaster Recovery Testing: Regular testing of disaster recovery plans should be part of the reassessment process, especially for high-tier vendors.

Best Practices for Effective Reassessments

1. Establish Clear Policies and Procedures

Documented Procedures: Develop and document clear procedures for reassessing third-party vendors. Ensure these procedures outline the frequency, scope, and criteria for reassessments.

Stakeholder Involvement: Involve relevant stakeholders, including IT, procurement, legal, and compliance teams, in the reassessment process to ensure comprehensive evaluations.

2. Leverage Technology

Automated Tools: Use automated tools to streamline the reassessment process. These tools can help collect data, perform risk analyses, and generate reports efficiently.

Real-Time Monitoring: Implement real-time monitoring solutions to continuously track vendor performance and compliance. This enables proactive reassessments in response to detected issues.

3. Continuous Improvement

Regular Reviews: Regularly review and update reassessment procedures to reflect changes in the regulatory environment, business operations, and emerging risks.

Feedback Loops: Establish feedback loops to learn from reassessment outcomes and improve future processes. Use insights from reassessments to enhance vendor management strategies.

4. Training and Awareness

Employee Training: Provide regular training to employees involved in the reassessment process. Ensure they understand the importance of reassessments and are equipped with the necessary skills and knowledge.

Vendor Communication: Communicate reassessment expectations to vendors. Ensure they are aware of the reassessment schedule and criteria and encourage transparency and cooperation.


Effective third-party tiering and reassessment frequency are crucial components of robust Third-Party Risk Management. By categorizing vendors based on risk and criticality, and determining reassessment frequencies accordingly, organizations can ensure ongoing compliance, security, and operational integrity. Implementing best practices such as clear policies, leveraging technology, continuous improvement, and training can further enhance the reassessment process, enabling organizations to proactively manage third-party risks in an ever-evolving threat landscape.

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