high severity March 31, 2026 · 3 min read Unverified claim — what this is

MC-Rx Listed by Genesis Ransomware Group

If you are a customer of MC-Rx, here’s what is being claimed, and what it would mean for you.

MC-Rx was listed on Genesis's leak site. Genesis claims to have stolen internal data. This is the group's claim, not a confirmed finding.

MC-Rx Listed by Genesis Ransomware Group

On March 31, 2026, pharmacy benefit management company MC-Rx appeared on the leak site of the Genesis ransomware group, with attackers claiming to have exfiltrated internal files from the organization formerly known as MC-21 and ProCare PBM.

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Reported Details of the Breach

Public reporting indicates the incident involves a ransomware attack in which Genesis operators say they stole internal company files. The exact number of people affected remains unknown, and the precise data types have not been fully detailed in available listings. The company provides pharmacy benefit management services, handling prescription drug coverage for insurers, employers, and patients. As of the listing date, March 31, 2026, the files were posted on the Genesis leak site hosted on the dark web.

Why This Matters for You and Your Family

When a pharmacy benefit manager is breached, the information at risk often includes prescription records, insurance details, Social Security numbers, addresses, and payment information tied to your health coverage. This kind of personal health and financial data can be used to commit identity theft, file fraudulent claims, or target you with highly personalized scams. For families, a single breach can expose every household member listed on the same insurance plan, including children. Once your information is loose on criminal forums, it rarely disappears and can resurface years later.

The Doxxing and Identity-Chain Risks

Credential leaks and internal files from healthcare vendors frequently cascade into larger doxxing campaigns. Attackers combine exposed emails, phone numbers, and policy details with data from other breaches to map your online handles to your real identity. This chain can lead to account takeovers on email, banking, or social media, and in some cases extends to gaming accounts where children use family email addresses or shared phones. Public reporting shows these identity chains accelerate harassment, swatting, and extortion once a clear link between your digital life and physical address is established.

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Report details & sourcing

Attributed to Genesis · 123 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed March 31, 2026

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Genesis — 123 incidents tracked

Every breach we've attributed to Genesis, in one running log. See who else they've hit →

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