PM Medical Billing was hacking A company with multiple vulnerabilities in its network allo Listed by alphv Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On or around May 17, 2023, P.M. Medical Billing Corp, a New York-based medical billing and practice-management firm, was listed by the alphv ransomware group as a victim. Public reporting describes the incident as involving a ransomware attack in which internal files were allegedly exfiltrated, with the group claiming the company had multiple vulnerabilities in its network. The number of people affected remains unknown, and many operational details have not been publicly confirmed.

For patients, providers, and partners who rely on specialized billing services, any unauthorized access to internal files raises practical questions about what information may have left the organization and what steps follow. What is established so far is limited; what matters is separating the verified outline from unverified claims.

Inside the incident

Public detail on the incident is sparse. Reporting dated May 17, 2023, states that P.M. Medical Billing Corp was listed by the alphv ransomware group. The available summary characterizes the event as a ransomware attack in which internal files were allegedly exfiltrated and refers to multiple vulnerabilities in the company’s network. No confirmed figure for the number of individuals affected has been released. Precise timing of initial access, the exact intrusion method, the volume of data taken, and any ransom demand or negotiation outcome are undisclosed in the material available for this account.

The alphv listing itself constitutes a claim by the group that it held or published data belonging to the organization. Independent confirmation of the full scope of that claim has not been detailed in the facts at hand. Organizations in this position typically investigate, contain systems, and notify regulators or affected parties according to applicable rules; whether and how those steps unfolded here is not described in the public summary provided.

Inside alphv

Alphv, also known in public reporting as BlackCat, is a ransomware operation that emerged in late 2021 and has been widely documented for double-extortion tactics. The group typically gains access to victim networks, exfiltrates data, encrypts systems, and then pressures organizations by threatening to publish stolen material on a dedicated leak site if payment is not made. It has been associated with a ransomware-as-a-service model in which affiliates carry out intrusions using varied initial-access methods, often including exploited vulnerabilities, stolen credentials, or phishing.

Alphv has appeared in numerous public breach reports across sectors, including healthcare-adjacent and professional-services targets. Its leak-site postings are claims of responsibility and data possession; they are not, by themselves, independent verification of every asserted detail. In this case, the facts state that P.M. Medical Billing Corp was listed by alphv; no further specific statements attributed to the group about this victim—beyond the listing and the characterization of internal-file exfiltration and network vulnerabilities—are provided here. The group’s broader activity has been the subject of law-enforcement attention over time, but that background does not add confirmed technical particulars about this single incident.

P.M. Medical Billing Corp and its sector

P.M. Medical Billing Corp is described as having operated for over two decades from Oyster Bay, New York, focusing on medical billing and practice management exclusively for ophthalmology and optometry sub-specialties. Publicly listed contact details place its headquarters at 111 South St Ste 6, Oyster Bay, New York, 11771, with a phone number of (516) 922-9571 and a website at www.pmbiller.com. Firms of this type sit between clinical practices and payers: they handle claims submission, coding support, accounts receivable, and related administrative workflows.

The medical-billing sector routinely processes large volumes of administrative and clinical-adjacent data. A disruption or unauthorized disclosure at a billing specialist can affect not only the billing company itself but also the eye-care practices that depend on it and, indirectly, the patients whose encounters generate the claims. Because billing organizations often maintain ongoing access to practice management systems and historical claim files, an incident here is consequential for continuity of revenue-cycle operations and for the confidentiality of information that flows through those systems. No finding of negligence or fault on the part of the company is established in the available facts.

The information in question

The facts name the exposed material as internal files exfiltrated in a ransomware attack. No further breakdown—such as specific categories of patient, employee, or financial records—is provided, and the number of people affected is unknown. Exact contents therefore remain unconfirmed.

Organizations that perform specialized medical billing typically hold or process data such as:

• Patient demographic and insurance identifiers used for claims
• Procedure and diagnosis coding information
• Provider and practice identifiers, remittance data, and account records
• Internal business documents, correspondence, and system files

Whether any or all of those categories were present in the exfiltrated files in this incident is not stated. Readers should treat the concrete contents as undisclosed until authoritative notices say otherwise.

The real-world impact

For individuals, the primary risks when internal files leave a medical-billing environment are misuse of personal or insurance-related information, targeted phishing that references real billing details, and, in some cases, longer-term identity or benefits fraud. Because the scale and exact data types are unconfirmed, it is not possible to state how many people face elevated risk or which specific harms are most likely. Affected practices may face operational delays, costs tied to incident response, and the need to communicate with patients or payers.

For the organization, a ransomware event with claimed exfiltration commonly brings investigative, legal, and notification obligations, potential regulatory scrutiny under health-privacy and breach-notification rules, and reputational strain with client practices. Restoration of systems, review of access controls, and monitoring for misuse of any published data are typical follow-on burdens. None of these outcomes are itemized with dollar figures or timelines in the facts given; they are the ordinary consequences observed across similar incidents in the sector.

Were you affected?

If you are a patient, provider, or employee connected to ophthalmology or optometry practices that used P.M. Medical Billing Corp, watch for official notices from the company or from your eye-care provider. Practical first steps include reviewing explanation-of-benefits statements and insurance correspondence for unfamiliar claims, placing fraud alerts with major credit bureaus if you believe sensitive identifiers may have been involved, and treating unsolicited calls or emails that reference billing details with caution. Use unique passwords and multi-factor authentication on medical-portal and email accounts.

Public detail on this incident remains limited: the alphv listing is a claim, the count of affected people is unknown, and the precise contents of the internal files are not itemized beyond the fact of exfiltration. You can run a free exposure scan of your email address to check whether your information has already surfaced in known breach datasets, and you can continue to monitor official updates from the organization for any confirmation of scope or recommended actions.

AICompiled with AI assistance from public sources and published under our editorial standards.