A data breaches have affected more than 5.5 million people, including the health of Yale New Haven, Connecticut's largest health care system, impacting over 5.5 million people, according to a legally necessary notice to the U.S. government health agency.
Yale New Haven said the March cyber attack allowed malicious hackers to obtain personal identification information for patients and copies of some healthcare-related data.
According to notifications on the Healthcare System website, stolen data will vary from person to person, but may include patient names, date of birth, postal and email addresses, telephone numbers, race and ethnic data, and Social Security numbers. The stolen data also includes information on patient types and number of medical records.
Local media said a healthcare system spokesman said the number of individuals affected “can change.” A Yale New Haven spokesman did not immediately comment when contacted by TechCrunch.
This is the second major healthcare data breaches confirmed this week after California's Blue Shield revealed it has been sharing health data on Google over several years.