Most breaches of personal health information stem from "internal issues" among doctors, hospitals and other providers, rather than hacks, according to research from Michigan State University and Johns Hopkins University, published last week in JAMA Internal Medicine.

Between the lines: Earlier research showed that the overall number of health care data breaches — and the number of records exposed from those breaches — is rising. But, according to this latest paper, most of those breaches aren’t hacks.