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Mid-south Pulmonary & Sleep Specialists Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Mid-south Pulmonary & Sleep Specialists P.c. data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Mid-South Pulmonary & Sleep Specialists
Mid-South Pulmonary & Sleep Specialists P.C. (MSPSS) is a medical practice based in Memphis, Tennessee, focusing on pulmonary, sleep, and critical care medicine.
The organization was founded in 1989 and provides a range of services, including diagnostic testing, sleep studies, and intensive care. They also partner with the Methodist Healthcare Sleep Disorders Center to support patients with sleep-related conditions.
What Happened?
On Nov. 2, 2025, Mid-south Pulmonary & Sleep Specialists discovered unauthorized activity within its computer systems.
The company responded by engaging third-party forensic experts to investigate and secure its network. After an investigation, it was confirmed that protected health information may have been accessed without authorization.
The incident was later linked to the ANUBIS ransomware group, which claimed to have obtained internal data and threatened to publish it on the dark web. The group posted about the breach on Nov. 28, 2025, indicating that names, dates of birth, addresses, phone numbers, Social Security numbers, medical records, and diagnostic details were among the stolen data.
The following types of consumer information were confirmed to have been exposed:
Information Exposed:
- Names
- Addresses
- Dates of birth
- Dates of service
- Driver’s license or state ID numbers
- Financial account information
- Health insurance information
- Medical diagnosis information
- Medical histories
- Medical provider names
- Medical record numbers
- Medical treatment information
- Medicare/Medicaid numbers
- Mental or physical condition details
- Other patient identifiers
- Patient account numbers
- Prescription information
- Social Security numbers
After identifying the affected individuals, the company began sending notification letters on May 18, 2026.
You May Be Entitled to Compensation
If your information was compromised in this breach, you may be eligible for compensation. Lawyers are ready to help affected individuals understand their rights and pursue claims for any harm suffered as a result of the data breach.
To find out if you qualify and to take the next step in joining a lawsuit, complete the below form.
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