The Challenge
The Health Care Cybersecurity and Resiliency Act of 2026 introduced mandatory cybersecurity standards for healthcare entities, marking a significant shift in protecting patient data. The law mandates multifactor authentication, enhances HHS's cybersecurity capacity, and requires breach notices to include the total number of affected individuals.
However, the American Hospital Association has highlighted a potential issue: it's unclear whether third-party vendors are subject to these new requirements. This is a critical concern, as Verizon's 2026 healthcare snapshot found that third parties were involved in 32% of healthcare breaches. A single flaw in widely used software can impact multiple healthcare organizations. Recent breaches, like those reported by Aesto and CareCloud, affected millions.
For compliance teams, the challenge is clear. Your organization might implement strong security measures, but if your vendors don't, vulnerabilities remain.
The Environment and Constraints
The bill was a response to the Change Healthcare ransomware attack, which exposed the health information of 190 million people. It highlighted the interconnected nature of healthcare systems, where a breach at one vendor can have widespread effects.
The legislation requires private healthcare entities to adopt minimum standards, train the cybersecurity workforce, and coordinate with CISA on incident response. It also provides specific guidance for rural providers. However, the term "private healthcare-related entities" is not clearly defined, leaving uncertainty about whether Business Associates are directly covered or only through contracts with Covered Entities.
This ambiguity means compliance teams can't wait for regulatory clarity. Your Business Associate agreements are active now, governing data flows.
The Approach Compliance Teams Are Taking
Proactive compliance officers aren't waiting for further guidance. They're auditing vendor contracts now, treating the Senate bill as a signal to act.
Start by inventorying all Business Associate Agreements to identify vendors with access to ePHI. Don't overlook systems like patient portals, scheduling, analytics, and cloud providers. Check if these contracts require multifactor authentication. Many recent agreements include general security terms but don't specify authentication methods. If your contract only mentions "appropriate safeguards," it's insufficient. You need explicit language requiring multifactor authentication.
For contracts lacking this specificity, compliance teams are issuing amendments or negotiating new terms. The message to vendors is clear: "Our organization requires multifactor authentication for any system handling our ePHI."
Some teams are also requiring vendors to annually attest that multifactor authentication is in place, creating an audit trail and ensuring ongoing compliance.
Another major focus is breach notification transparency. The bill mandates that organizations disclose the total number of affected individuals. Compliance teams are updating their breach response plans to quickly calculate and communicate total impact, preparing for patient inquiries about the scale of breaches.
Results and What We're Learning
Organizations tightening vendor contract language are seeing positive outcomes.
First, most vendors are willing to commit to multifactor authentication, as it's now a standard expectation. Vendors who resist may indicate technical debt or a problematic compliance stance.
Second, the contracting process often reveals gaps. When vendors are asked to confirm multifactor authentication, it's sometimes found that not all user types are covered. Attackers often target these secondary access paths.
The requirement for breach notification transparency is also driving change. Calculating total impact requires better data architecture. If patient records are spread across systems, automated queries are necessary to quickly determine the number of affected individuals.
Transparency can lead to stronger patient reactions, but it also empowers them to take protective action. The bill prioritizes long-term trust over short-term discomfort.
What Needs to Change
The American Hospital Association's call for clarity on vendor coverage is not just advocacy; it's operationally essential. If HHS excludes Business Associates from the definition of "private healthcare-related entities," a compliance gap will remain where the most damage occurs.
Compliance teams should prepare for this possibility. Don't rely solely on the bill to enforce vendor compliance. Use your contracts to ensure it.
Incident response planning also needs attention. The bill directs HHS and CISA to create a joint response plan for major incidents. Your organization should have its own version. Determine who calculates total impact, drafts patient notices, and interfaces with state attorneys general when reporting different numbers.
These tasks become more complex when a vendor breach affects you. If Aesto or CareCloud is counting affected individuals, and you're doing the same, you need a process to reconcile those figures before issuing a notice.
Takeaways for Your Team
Begin with your Business Associate contracts. Identify vendors with ePHI access and ensure their agreements specify multifactor authentication. If not, negotiate amendments or address it at renewal.
Don't assume the bill's standards will automatically apply to vendors. Even if HHS eventually requires it, you need contractual leverage now.
Develop breach notification processes that allow you to quickly state total impact. Know where your patient data resides, how to query it across systems, and how to calculate affected individuals without manual effort.
Finally, monitor how HHS defines "private healthcare-related entities" during implementation. This definition will determine if the law closes the vendor gap or leaves it open. Your contracts are the tool you control today.
