An anonymous reader quotes a report from The Wall Street Journal:
Hospitals have granted Microsoft, IBM and Amazon the ability to access identifiable patient information under deals to crunch millions of health records, the latest examples of hospitals' growing influence in the data economy. This breadth of access wasn't always spelled out by hospitals and tech giants when the deals were struck. The scope of data sharing in these and other recently reported agreements reveals a powerful new role that hospitals play -- as brokers to technology companies racing into the $3 trillion health-care sector. Rapid digitization of health records in recent years and privacy laws enabling companies to swap patient data have positioned hospitals as a primary arbiter of how such sensitive data is shared.As for Amazon, the Fred Hutchinson Cancer Research Center, in Seattle, granted certain AWS employees access to health information that identifies individual patients. "The Hutch, a research institution with ties to hospitals, trained and tested Amazon Web Services software designed to read medical notes," the report says. "An AWS spokeswoman said it doesn't use personally identifiable data protected under federal privacy laws to develop or improve its services."