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high severity February 06, 2023 · 3 min read Unverified claim — what this is

AmerisourceBergen/Censora - MWI Animal Health Listed by lorenz Ransomware Group

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

AmerisourceBergen/Censora - MWI Animal Health was listed on the lorenz ransomware leak site. The group claims to have stolen internal data.

— from Lorenz’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
AmerisourceBergen/Censora - MWI Animal Health Listed by lorenz Ransomware Group

On February 6, 2023, AmerisourceBergen subsidiary MWI Animal Health appeared on the Lorenz ransomware group’s public leak site. The listing states that the veterinary and animal-health distributor suffered a ransomware attack in which internal files were exfiltrated. The disclosure does not quantify how many records were taken, name the specific systems compromised, or list the exact data types exposed.

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Reported Details from the Leak Site

The Lorenz portal entry for AmerisourceBergen/Censora – MWI Animal Health claims the company’s internal data was successfully stolen prior to encryption attempts. No sample files are currently published, and the listing does not detail the volume or sensitivity of the material. Ransomware.live archived the page on the same date, claiming the group’s public attribution. The notification leaves open whether customer records, supplier contracts, employee information, or financial documents were included.

Why This Matters for You and Your Family

When a major distributor in the animal-health supply chain is breached, the ripple effects reach ordinary pet owners, veterinary clinics, and families who rely on those services. If your veterinarian’s ordering system, your pet’s prescription history, or your own employment or insurance details intersect with MWI’s network, your information may now sit in an attacker’s archive. Even without exact record counts, the mere presence of internal files on a ransomware leak site increases the chance that personal or financial data tied to those operations could surface later in identity-theft markets.

The Doxxing and Identity-Chain Risks

Stolen internal files frequently contain spreadsheets that link names, emails, phone numbers, and sometimes home addresses. Attackers and subsequent buyers can chain these details with usernames discovered in other breaches, creating persistent identity profiles. A veterinarian’s work email reused on a personal shopping account, or a clinic owner’s phone number listed in supplier contacts, becomes a bridge between corporate data and family life. Children’s pet-related accounts or family gaming handles that share the same household address can be pulled into the same chain, turning one corporate breach into long-term doxxing exposure.

Lorenz Ransomware Group’s Known Track Record

Public reporting attributes the Lorenz ransomware operation to a group that first surfaced in 2020. The actors have targeted organizations across healthcare, manufacturing, and logistics sectors. Their typical playbook involves initial access through compromised credentials or vulnerable remote-desktop services, followed by exfiltration of sensitive files before deploying ransomware. They then extort victims by threatening to publish the stolen data on their leak site if payment is not made. While not every listed victim suffers full data publication, the group’s pattern shows a willingness to release samples or entire archives when negotiations fail.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Rotate any password you used at MWI Animal Health, your veterinarian, or related suppliers anywhere it has been reused, and switch to 2FA through an authenticator app instead of text messages.
  • Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts sharing the same address or linked credentials.
  • Let remediation specialists manage data-broker takedown requests and ongoing exposure cleanup on your behalf.

The incident underscores that supply-chain breaches now reach into everyday family routines far beyond the corporate perimeter. Starting with a clear picture of your own exposure footprint is the most practical defense. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, including household coverage that protects children’s gaming accounts from cascading credential attacks.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

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value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High
Disclosed February 06, 2023
Last reviewed August 8, 2026
Affected Unconfirmed
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.
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