FILE PHOTO: The corporate logo of the UnitedHealth Group appears on the side of one of their office buildings in Santa Ana, California, U.S., April 13, 2020. REUTERS/Mike Blake/File Photo
(Reuters) -The February hack at UnitedHealth's tech unit Change affected the personal information of 100 million people, the U.S. health department's website showed, making it the largest healthcare data breach in the country.
UnitedHealth has previously said that hackers potentially stole a third of Americans' data in one of the worst hacks to hit the U.S. healthcare sector. The company began notifying affected patients in June.
