The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that delivers our stories and tools directly to your inbox. State-run health care websites around the country, meant to provide a simple way to shop for insurance, have been quietly sending visitors’ sensitive health information to Google and social media companies, The Markup and CalMatters found. The data,...