A single security slip-up from an outside partner can lead to millions in damages and a ruined reputation. Learn how to identify hidden threats in your business relationships before they have the chance to compromise your operations.
Key Takeaways
- Third-party due diligence must extend beyond traditional suppliers to include any external entity with system access, such as law firms, IT consultants, and cloud software providers.
- Creating a formal third-party due diligence process allows a company to uncover hidden risks like weak cybersecurity or poor record-keeping before a contract is ever signed.
- Organizations need to conduct regular, ongoing risk assessments of their vendors because a partner’s legal standing or security posture can change long after the initial onboarding is complete.
It took software-as-a-service vendor Young Consulting more than three days to discover that its systems had been compromised in a ransomware attack in 2024. By then, hackers had accessed the sensitive medical records of more than 950,000 people.
Young Consulting rebranded as Connexure a few days later, but the fallout from the data breach affected customers like Blue Shield for far longer. In a world where vendor missteps can cause millions of dollars in damages, third-party due diligence is vital for enterprise security.
Third-Party Due Diligence Explained
“Due diligence” means performing an in-depth analysis of the potential risks and impacts of business decisions, plans, or investments. “Third-party due diligence” is the process of reviewing vendors, suppliers, and other outside partners. TPDD helps your organization evaluate external service providers in terms of operational risks, reliability, information security practices, regulatory compliance, product quality, and similar factors.
Businesses often equate due diligence with vetting and onboarding, but investigating suppliers before signing purchase agreements is only part of the equation. When managed correctly, TPDD programs involve regularly assessing vendors, identifying red flags, and taking appropriate action before untrustworthy companies have a chance to harm your business.
Business Relationships That Require Third-Party Due Diligence
TPDD is commonly associated with vendor risk management, but the list of third-party contacts with your business can be much larger. Comprehensive due diligence requires evaluating:
- Software vendors, including major brands like Microsoft Azure and Amazon Web Services
- Equipment and parts suppliers
- Service organizations, such as IT companies
- Law firms
- Business consultants, including compliance and cybersecurity assessors
- Distributors associated with your products
In other words, TPDD goes beyond supply-chain security. It applies to all third parties that may affect your operations. It’s especially important to monitor entities that have access to sensitive data, network infrastructure, systems, business assets, and physical locations.
The Importance of Effective Due Diligence
Today’s companies face unprecedented challenges to stable and secure business operations. Vendor due diligence is critical for:
- Maintaining Elevated Cybersecurity: Avoid vulnerabilities from third-party software, personnel, IoT devices, and infrastructure.
- Preventing Compliance Violations: Choose vendors that have a proven track record of compliance with HIPAA, GDPR, NIST 800-171, or other frameworks your company must follow.
- Avoiding Downtime: Evaluate cloud-based services and data centers for platform stability, security, and performance.
- Safeguarding Your Supply Chain: Select suppliers that have strong financials, consistent quality, and experience navigating global challenges, such as cross-border transactions.
- Protecting Your Brand: Identify reputational risks from being associated with third parties, and make sure partners reflect well on your company’s standards.
Enterprises are even more exposed to global risks. For example, politically exposed persons can inadvertently link your company to U.S. or EU sanctions, money laundering, bribery, and other dangers. Knowing who your vendors do business with, employ, or outsource tasks to matters.
Key Steps in the Third-Party Due Diligence Process
What third-party due diligence consists of depends on the complexity of your operations and the level of regulatory scrutiny you face. It’s also normal to apply more rigorous checks to some third parties than others, such as high-risk data flows or critical supply chains.
1. Map Regulatory Obligations
Successful third-party assessments need a backdrop to compare against. Create a clear picture of the regulatory obligations for different areas of your business. Next, map vendor categories to the respective frameworks, such as HIPAA rules for third parties that interact with patient data.
2. Gather the Necessary Data
TPDD results are only as good as the amount and quality of data available. Data collection should draw from publicly available records, social media/news feeds, and official company documents. Gather information regarding:
- Company structure and leadership
- Cybersecurity maturity, practices, technological safeguards, and certifications
- Key funding sources and shareholders
- Subsidiaries, beneficiaries, and stakeholders
- Geopolitical links, postures, and affiliations
- Past and current litigation
The higher the risk or impact a third party has on your operations, the deeper your team should dig for relevant data. For low-risk vendors, a simple screening and background check may be enough. On the other hand, firms that access sensitive supply chains should undergo enhanced checks, potentially using market data, credit reports, and subscription databases.
3. Perform a Third-Party Risk Assessment
TPDD and TPRM overlap significantly. Managing third-party risks is an important part of due diligence. The best time to identify critical issues is before allowing vendors to access your systems or data.
An in-depth risk assessment for due diligence might uncover:
- Suspicious record-keeping practices that suggest fraud or weak financials
- Repeated regulatory violations
- Shoddy cybersecurity practices
- “Certifications” that come from disreputable companies, such as shady auditors who benefit financially from assessment services
- Inadequate controls for supply chain emergencies
- Liens and claims against the company
The due diligence process places a heavier emphasis on investigation, internal discussions, and go/no-go decisions. TPRM digs deeper into identifying, prioritizing, and mitigating the risks associated with each vendor category.
4. Check Global Watchlists and Breach Notifications
Many U.S. businesses must evaluate third-party suppliers to comply with anti-money-laundering, anti-bribery, and financial reporting regulations, such as the Bank Secrecy Act. Enhanced due diligence in these circumstances requires checking global watchlists for misconduct:
- PEP risks
- Fines for noncompliance
- Direct or indirect government sanctions
- Criminal charges against the company or key stakeholders
- Public outrage over controversial actions, policies, or statements
- Industry sanctions (e.g., legal disbarment)
There are official watchlists for reviewing third-party organizations, including official PEP lists and databases prepared by law enforcement agencies or regulators.
5. Validate Conclusions and Take Appropriate Action
AI tools can streamline information gathering, but qualified team members should oversee any assessment and decision-making processes. Subject matter experts can validate findings, review the data in harmony with company policies, and make a decision that minimizes risks.
Sometimes, the right call is to blacklist vendors or terminate existing contracts. Other times, corrective actions and follow-up audits are sufficient to ensure compliance.
Improve Third-Party Due Diligence, Management, and Monitoring
Third-party due diligence is worth investing in. Data-driven vendor decisions help you adapt to evolving risks, strengthening your defenses against costly cyberattacks and system disruptions.
For a comprehensive TPDD platform with added customization and automation capabilities, choose Compyl. This powerful vendor risk management solution can accelerate due diligence stages, simplify tracking, and improve visibility. Request a quote today.
