The Associated Press reports that healthcare.gov–the flagship site of the Affordable Care Act, where millions of Americans have signed up to receive health care–is quietly sending personal health information to a number of third party websites. The information being sent includes one’s zip code, income level, smoking status, pregnancy status and more.
An example of personal health data being sent to third parties from healthcare.govAn example of personal health data being sent to third parties from healthcare.gov
EFF researchers have independently confirmed that healthcare.gov is sending personal health information to at least 14 third party domains, even if the user has enabled Do Not Track. The information is sent via the referrer header, which contains the URL of the page requesting a third party resource. The referrer header is an essential part of the HTTP protocol, and is sent for every request that is made on the web. The referrer header lets the requested resource know what URL the request came from. This would for example let a website know who else was linking to their pages. In this case however the referrer URL contains personal health information.