HHS tracking technologies guidance is official advice on how websites and apps handling health information should assess pixels, cookies and similar tools. It warns that these technologies can disclose protected health information to third parties if deployed without appropriate controls, consent and vendor review, so organisations should map data flows, limit collection and check disclosures.
What tracking technologies are and why they matter in healthcare
Tracking technologies are code-based tools, such as pixels, cookies, tags and similar scripts, that observe user activity and send events to third parties. In healthcare settings, the issue is not the technology alone, but whether it can reveal health-related browsing, appointment, symptom or treatment information.
The main concern is that these tools often operate quietly in the background, so a page can collect and transmit data before an organisation fully understands what is being shared. That makes them a privacy and disclosure problem as much as a website analytics problem.
How HHS guidance frames the exposure
HHS guidance focuses on assessing whether a website or app is collecting protected health information through tracking code and whether the data flow extends beyond the organisation’s intended boundary. The practical question is not just “is the code installed?”, but “what information leaves the environment, who receives it, and under what authority?”.
This is especially important where pages are tied to patient-facing services, forms or logged-in experiences. A seemingly ordinary analytics deployment can become a disclosure path if the tool receives identifiers, page context or event data that reveals health information.
For teams that need a broader control baseline around access, auditability and secure configuration, NIST SP 800-53 Rev 5 Security and Privacy Controls is useful as a control catalogue for mapping governance and monitoring expectations.
What organisations should evaluate before deploying tracking code
Effective review starts with inventory and data mapping: which scripts are present, what data they capture, where the data is transmitted and whether any vendor receives content that could identify a person or their health activity. A website tag can be low risk in one context and highly sensitive in another.
Organisations should also check whether the tool is necessary for the stated purpose, whether collection can be minimised, and whether vendor terms, disclosures and user-facing notices match the actual behaviour of the code. If the vendor’s role changes, the privacy review should change with it.
Where web and app telemetry is part of a broader security programme, the NIST Privacy Framework is a useful companion for data-flow review, minimisation and governance of personal-data handling.
Why this guidance changes operational practice
HHS tracking technology guidance pushes teams to treat pixels and similar tooling as a governed data-processing decision, not a default marketing feature. That means privacy, security, product and legal stakeholders all need a common view of what is being collected and whether the collection is justified.
It also changes how organisations think about third-party dependencies. If a vendor can observe page events or user interactions that reveal sensitive context, that relationship becomes part of the organisation’s disclosure surface, even when the tool is embedded through standard web code.
For organisations handling EU personal data alongside healthcare information, EU General Data Protection Regulation (GDPR) is a relevant external reference for principles such as minimisation, purpose limitation and security of processing.
Risk and Threat Considerations
Tracking technologies can create unintended disclosure when page content, identifiers or event data are sent to third parties before the organisation has validated the data flow. The risk is amplified in healthcare because the same browsing event can reveal highly sensitive context even if no medical record is directly exposed.
Failure mechanism: A script embedded on a health-related page sends browser or interaction data to an external service, and that service can infer or receive protected health information through the payload, referrer, URL parameters or linked identifiers.
Impact: The organisation may create an unapproved disclosure path, lose control over downstream use of the data, and expose patients to privacy harm, regulatory scrutiny and trust damage.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST SP 800-53 Rev 5 and NIST CSF 2.0 set the technical controls, while GDPR defines the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | AU-2 — Event Logging | Tracks collection and transmission events for sensitive web telemetry |
| SC-7 — Boundary Protection | Supports control of outbound data flows from healthcare web properties | |
| SA-9 — External System Services | Covers governance of vendor services that receive tracking data | |
| Recommendation — Log and review third-party tracking events that may disclose sensitive health data. Constrain outbound tracking traffic to approved destinations and disclosures. Set contractual and technical limits on vendors that process tracking data. | ||
| GDPR | Article 5 — Principles relating to processing of personal data | Requires minimisation and purpose limitation for personal-data collection |
| Article 25 — Data protection by design and by default | Directly supports privacy-by-design review of tracking technologies | |
| Recommendation — Limit tracking collection to data that is necessary and purpose-bound. Design tracking implementations to minimise collection and default to the least intrusive setting. | ||
| NIST CSF 2.0 | PR.DS-01 — Data-at-rest is protected | Supports safeguarding collected user data once tracking systems store it |
| Recommendation — Protect stored tracking data so it is not exposed beyond approved access. | ||
Practitioner Guidance
Why practitioners should care: Tracking code should be reviewed with the same discipline as any other third-party data-sharing decision. In practice, the question is whether the tool’s business value justifies the privacy and disclosure exposure it introduces.
What to watch for: Be alert to login pages, symptom-checker flows, appointment scheduling, patient portals and any page where URLs, form fields or event data can reveal health context. Those are the places where “small” telemetry choices most often become sensitive disclosures.
Related resources from NHI Mgmt Group
- How should healthcare organisations control tracking technologies in patient portals?
- How should healthcare organisations update HIPAA controls as health data moves into cloud apps, connected devices, and tracking technologies?
- How should organisations prepare for CCPA enforcement when using online tracking technologies and cookie-based data collection?
- Why do cookies and similar tracking technologies create privacy risk under Australian law?