Ongoing monitoring is a key step in effective Third-Party Risk Management (TPRM) that helps ensure continuous compliance, cybersecurity performance, and risk management of external vendors and service providers. It’s a necessary step that reinforces how vendors are managing their cybersecurity processes to prevent potential data breaches or reputational damage.
While risk assessments are usually point-in-time assessments that evaluate a vendor’s security performance only at that moment, ongoing monitoring establishes continuous risk identification, mitigation, and remediation and ensures continued compliance with key regulatory requirements or industry-standard frameworks.
This guide provides a comprehensive overview of ongoing monitoring in TPRM and implementation tips.
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Ongoing monitoring in TPRM programs involves continuously assessing third-party vendors and reviewing their activities, performance, and compliance statuses. This monitoring process aims to detect and mitigate any potential risks in real-time that might arise during the vendor relationship.
Ongoing monitoring occurs towards the end of the TPRM lifecycle after the vendor has been onboarded. Unlike due diligence, which is conducted before partnering with a vendor, ongoing monitoring happens after onboarding to ensure that the vendor remains compliant and upholds the agreements established in the SLAs (service level agreements).
A typical third-party risk management lifecycle includes the following:
Typically, the ongoing monitoring process should involve the following elements:
Evaluate the cybersecurity risk profiles of third-party vendors regularly to identify any new or emerging risks. Third-party risk assessments are carried out using various methods, such as security ratings, security questionnaires, and compliance management. Determine whether or not the vendor has adequate internal controls to prevent possible business disruptions.
Continuously monitor vendors' performance against established success metrics and key performance indicators (KPIs). If the vendor shows improvement throughout its lifecycle, ongoing monitoring efforts can be reduced over time as part of building trust within the vendor relationship.
However, if the vendor shows signs of regression, it may be time to review their contractual obligations and determine if a continued partnership is possible. If so, work with the vendor to improve their performance and keep a close eye on their progress.
Ensure that vendors comply with relevant regulations, standards, and contractual obligations. Many industries have stringent compliance requirements, like GDPR for EU businesses, HIPAA for the US healthcare industry, or PCI DSS for the financial services industry, that can affect the vendor’s overall security performance. Even the smallest violation or misstep can potentially put the whole system at risk.
Put action plans in place that detail how to respond to security incidents or breaches involving third-party vendors. These plans should be updated regularly to reflect the evolving threat landscape and new vulnerabilities that arise. In addition to incident response plans, vendors should also establish disaster recovery and business continuity plans to ensure minimal operational downtime.
Related: How to Create an Incident Response Plan
While you should constantly be tracking your vendors in a third-party monitoring solution, it’s also important to periodically perform comprehensive risk assessments to track their security performance over time. The frequency of ongoing monitoring in TPRM depends on several factors, including the criticality of the vendor and vendor services, relevant industry regulations and frameworks, and your organization’s risk tolerance and risk appetite.
As a general guideline, vendors posing a greater risk to your organization should undergo more detailed third-party monitoring compared to lower risk vendors.
Organizations should adjust their monitoring frequency to their specific needs and the nature of their third-party relationships. Automating parts of the monitoring process can also help maintain consistency and efficiency throughout the vendor lifecycle.
Yes, fourth-party vendors should be included in continuous monitoring efforts. Fourth-party vendors can pose significant risks to your organization’s IT ecosystem and the entire supply chain, especially if they handle sensitive information or critical services.
Ensuring that your third-party vendors have adequate risk management practices for their own vendors and suppliers is a critical step of the third-party risk management process, even if they are outsourcing some of their services.

You can include fourth-party vendors in your organization’s monitoring efforts by:
Read more: What is Fourth-Party Risk Management?
To get started with the ongoing monitoring of third-party vendors, consider the following key steps:
To ensure your ongoing monitoring processes are working effectively in TPRM, consider the following best practices:
By implementing these best practices, organizations can enhance their third-party risk management programs and better protect themselves from potential risks associated with third-party vendors.