Someone took advantage of a "scheduling tool vulnerability" on the hospital's website Saturday and shared an unauthorized scheduling pathway to others.
"These appointments violate the ethical distribution framework Beaumont created based upon the State of Michigan's mandatory vaccine guidelines. We regret 2,700 people in our community became victims of this unfortunate incident. We remain committed to vaccinating as many people as possible who meet the State's guidelines," Beaumont Health Senior Vice President & Chief Information Officer Hans Keil said.
The incident was first reported when "unusual activity" related to the hospital's scheduling system was detected Saturday.
The people who took advantage of the "unauthorized 'backdoor' pathway" were informed that their appointment had been canceled.
The online infrastructure that Beaumont uses is run by Epic, an electronic medical record systems company based out of Wisconsin.
The hospital said no one's personal medical records were compromised and it didn't allow anyone outside to access hospital records.