ESO Solutions, a provider of software products for healthcare organizations and fire departments, disclosed that data belonging to 2.7 million patients has been compromised as a result of a ransomware attack.
According to the notification, the intrusion occurred on September 28 and resulted in data being exfiltrated before the hackers encrypted a number of company systems.
During the investigation of the incident, ESO Solutions discovered that the attackers accessed one machine that contained sensitive personal data.
On October 23, the company determined that the data breach caused by the ransomware attack impacted patients associated with its customers, including hospitals and clinics in the U.S. The type of data exposed includes the following:
- Full name
- Dates of birth
- Phone number
- Patient account/medical record number
- Injury type and date
- Diagnosis information
- Treatment type and date
- Procedure information
- Social Security Number (SSN)
The exact types of data exposed vary per individual, depending on the details the patients provided to the healthcare organizations using ESO’s software and the care services they received.
The software vendor has informed the FBI and
state authorities of the incident. All impacted customers were notified
on December 12, and some of the affected hospitals
started sending notices of a breach to their patients in
the days that followed.
“At this time, we do not have evidence that your information has been misused,” reads the
notification to impacted patients.
To mitigate the risk of the data breach, ESO offers 12 months of identity monitoring service coverage through Kroll to all notice recipients.
