Was Unknown Medi-Cal Billing Platform hit by ransomware?

Unknown Medi-Cal Billing Platform was listed by the pear ransomware operation (United States) as a victim being extorted; data had not been published at the time of listing. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the pear ransomware group?

pear is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

Ransomware victim disclosure

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Unknown Medi-Cal Billing Platform

Claimed by Pear · listed 2 days ago

Age

since listed · listed for ransom

Status timeline

ListedSep 3, 2026

Current state: Listed for ransom

At a glance

Group: Pear
Status: Listed for ransom
Country: United States
Sector: Healthcare IT
Listed on leak site: Sep 3, 2026

About the victim

AI dossier — public-source company profile

A software platform designed to manage Medi-Cal billing, LEA BOP, and CRCS submissions for healthcare providers in California. The platform serves medical practices and healthcare organizations processing state insurance claims.

Industry: Healthcare IT / Medical Billing Software

Attack summary

Severity: medium — The post indicates a compromise of a healthcare billing platform that processes sensitive state insurance claims and provider information, but no proof files, screenshots, or specific exfiltrated data samples are provided. The claim is unsubstantiated by evidence in the leak post.

The pear group claims to have compromised a Medi-Cal billing platform. The leak post lists multiple victim organizations across healthcare, legal, real estate, and other sectors, but provides no specific details about encryption, exfiltration, or the scope of data accessed from the billing platform itself.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Medi-Cal billing records
LEA BOP submissions
CRCS submissions
Healthcare provider data

What the group claims

Comprehensive platform to manage Medi-Cal billing, LEA BOP, and CRCS submissions efficiently

The leak post

captured from the group's site

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 |  Provider for Business-class Internet, Cybersecurity & Home Wi-Fi Internet Service Providers, Website Hosting & Internet-related Services   |  
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 |  **Mogren, Glessner & Ahrens, P.S. ** Law Firms & Legal Services   |  
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 |  Privately held real estate investment and development company Advertising Networks, Finance & Real Estate Business Services   |  
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 |  **Clifton Architectural Glass & Metal ** A company that installs double-pane windows  |  
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 |  A center staffed by highly skilled plastic surgeons  |  
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 |  Comprehensive platform to manage Medi-Cal billing, LEA BOP, and CRCS submissions efficiently  |  
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 |  A Place to Play Cards in Central California  |  
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 |  **Medical Arts Chemists and Surgicals** Prescriptions and Home Medical…

Screenshot of the leak post

Leak screenshot for Unknown Medi-Cal Billing Platform

Sources

Leak posthttp://peargxn3oki34c4savcbcfqofjjwjnnyrlrbszfv6ujlx36mhrh57did.onion

Source

Indexed 2 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About pear

The Pear ransomware group is a relatively new threat actor that emerged in August 2025, operating with primarily financial motivations and targeting victims across multiple countries and sectors. Based on their recent emergence and limited public documentation, specific details about their country of origin and organizational structure remain unclear, though their targeting patterns suggest a financially-driven operation that may operate independently or as part of a smaller ransomware-as-a-service model. With 65 documented victims since their August 2025 debut, the group has demonstrated a preference for targeting organizations in the United States, New Zealand, Australia, Egypt, and Switzerland, with particular focus on healthcare, business services, manufacturing, and technology sectors. Their attack methodology and specific technical details have not been extensively documented by major threat intelligence firms or law enforcement agencies, though their rapid victim acquisition suggests they have established effective initial access and encryption capabilities. Notable campaigns and high-profile attacks have not been publicly detailed by CISA, FBI, or major security research organizations, likely due to the group's recent emergence and relatively small scale compared to established ransomware operations. As of late 2025, Pear appears to remain active given their recent emergence and ongoing victim targeting across multiple geographic regions and industry verticals. The group has been linked to 130 public disclosures across our corpus. First observed on a leak site on August 5, 2025; most recent post September 4, 2026. The operation is currently active.

Timeline of this disclosure

September 3, 2026Unknown Medi-Cal Billing Platform listed by pearon the group's public leak site

Other recent disclosures by pear

pear has been linked to 130 public victims on Darkfield. A sample of the most recent:

See the full pear dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare IT sector. Geographically, Unknown Medi-Cal Billing Platform is reported in United States, a country with 3,165 ransomware disclosures in our corpus.

If your organisation is affected

A listing by pear means Unknown Medi-Cal Billing Platform appeared on a ransomware extortion site and is being pressured to pay before any publication. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on pear's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.