Bell Ambulance and Alabama Ophthalmology Associates have suffered data breaches affecting over 100,000 people after being targeted in ransomware attacks.

One of them is Milwaukee, WI-based Bell Ambulance, which provides ambulance services in the area. The company revealed last week in a data security notice that it detected a network intrusion on February 13, 2025.

An investigation showed that hackers gained access to files containing information such as name, date of birth, SSN, and driver’s license number, as well as financial, medical and health insurance information.

Bell Ambulance did not say in its public notice how many individuals are impacted, but the Department of Health and Human Services (HHS) data breach tracker revealed on Monday that 114,000 people are affected.

The Medusa ransomware group announced hacking Bell Ambulance in early March, claiming to have stolen more than 200 Gb of data from its systems.

The second healthcare organization to confirm a data breach impacting more than 100,000 people is Birmingham, AL-based ophthalmology practice Alabama Ophthalmology Associates.