Your Business is Compliant—But What About Your Vendors? Legal Liability for Third-Party Mistakes

March 17, 2025

Written by Tricia Dunlap

Tricia’s expertise centers on corporate law. She helps companies and individuals navigate: fiduciary duties, shareholder rights and corresponding corporate obligations, boards of director decision-making or conflict issues, and corporate officer responsibilities.
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Many business owners take great care to ensure they comply with all relevant laws and regulations, from data protection to environmental standards. However, vendors and third-party service providers often handle sensitive data, perform essential business functions, or supply critical components. Even if your business follows the law, your vendors’ mistakes could still create legal liability for you.

A notable example occurred in the 2013 data breach of Target Corporation. There, attackers gained access to Target’s network by accessing credentials that were compromised by phishing attacks on its third-party HVAC vendor. This breach resulted in the exposure of approximately 40 million customers’ credit and debit card information. Target not only faced significant financial losses, including a 46% drop in fourth-quarter profits in 2013, but significant legal implications as well, including an $18.5 million settlement and hundreds of lawsuits. The total financial impact, including legal fees, settlements, and security improvements, was estimated between $200 and $300 million, exemplifying the consequences of inadequate third-party risk management.

How are Businesses Held Liable for Their Vendors’ Actions?

Agency Liability: Businesses may be liable for the actions of vendors if those vendors are acting as agents of the business. If a vendor is acting under your control or authority, courts may consider your business responsible for their violations.

Information Privacy Liability: Regulations such as Virginia’s Consumer Data Protection Act (VCDPA), the Federal Health Insurance Portability and Accountability Act (HIPAA), and even the European Union’s General Data Protection Regulation (GDPR) impose strict compliance requirements on Virginia businesses handling sensitive data of the populations each law is designed to protect. These laws create liability for mishandling personal, health, or financial information, even if the mistake originates from a third-party vendor. If a vendor processes, stores, or transmits protected information and fails to follow legal requirements, your business may still be held responsible for their noncompliance, leading to fines, lawsuits, and/or reputational damage.

Some industry regulations impose strict liability, meaning a business can be held responsible even if it did not directly commit a violation. For example, under HIPAA, healthcare organizations must ensure Business Associates (e.g., third-party billing companies, IT providers) comply with privacy laws. If a vendor mishandles patient data, the healthcare provider may face penalties alongside the vendor.

Negligent Hiring: If a business fails to vet vendors properly, regulators or courts may determine that it was negligent in its oversight. If your business should have known a vendor was non-compliant or high-risk, you may be held liable for their misconduct.

Compliance Best Practices for Organizations:

Review Contracts: Work with the attorneys at Dunlap Law to ensure existing and future vendor agreements clearly define compliance obligations (including and especially data privacy compliance), liability provisions, audit rights, and indemnification provisions.

Conduct Vendor Due Diligence: Before engaging with a vendor, verify their compliance track record, industry certifications, insurance coverage, and history of regulatory fines or lawsuits. Require vendors to provide compliance documentation and references from other clients.

Establish a Response Plan for Vendor Violations: In the event of a vendor violation, have a predefined plan to investigate the issue, notify customers and regulators if required, and mitigate legal exposure.

Maintaining compliance within your business is crucial, but it’s equally important to ensure your vendors meet legal and regulatory standards. Failing to do so can expose your business to legal and financial risks. By conducting thorough due diligence, mapping your company’s data, enforcing clear contractual obligations, and having a response plan in place, you can mitigate third-party compliance risks and safeguard your business from potential liabilities.

If you have concerns about vendor compliance risks and data privacy, our team is here to help. Schedule a free consultation to discuss how we can help you protect your business from the specific third-party liabilities to which it’s susceptible.

This material is for informational purposes only. It is not intended as legal advice and does not create an attorney-client relationship between its readers and Dunlap Law. Consult an attorney before taking action on issues outlined here. This is attorney ADVERTISING MATERIAL.

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