Pulmonary Services Group
thegentlemen listed this organization on its leak site on Sep 30, 2026.
- Listing date
- Sep 30, 2026
- Attack date
- Sep 29, 2026
Listing text
pulmonaryservicesgrouppr.com zoominfo.com/c/pulmonary-services-group/442368923 Pulmonary Services Group (Medicare-enrolled since 1998, pulmonaryservicesgrouppr.com, Santurce/San Juan + Mayagüez, Puerto Rico) is a three-company group — Respiratory Equipment Leasing and Sales Services Corp., Mayagüez Alquiler y Venta, and Pulmonary Equipment Corp — providing home medical equipment and respiratory therapy services across the island and hospital equipment distribution to Puerto Rico and the Caribbean. Its specialty is home mechanical ventilation for ventilator-dependent patients (neonates to elderly), plus CPAP/BiPAP for sleep apnea, oxygen concentrators, speaking valves, enteral feeding and home-care gear (hospital beds, lifts, mattresses). The company holds JCAHO accreditation since 1998 in respiratory therapy and durable medical equipment, accepts Medicare and most local health plans, and offers 24/7 delivery, installation, training and technical support.
About the group
thegentlemen posted its first listing on Sep 9, 2025 and has listed 1,253 organizations to date.
The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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