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high severity February 27, 2024 · 4 min read Unverified claim — what this is

qosina.com Listed by cactus Ransomware Group

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

qosina.com was listed on Cactus's leak site. Cactus claims to have stolen internal data. This is the group's claim, not a confirmed finding.

qosina.com Listed by cactus Ransomware Group

On February 27, 2024, medical device component manufacturer Qosina appeared on the leak site operated by the Cactus ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on the company, which supplies more than 5,000 single-use OEM components to the medical and biopharmaceutical industries. Anyone whose personal or business information touched Qosina’s systems may now face heightened risk of identity theft or targeted fraud.

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Reported Details from the Listing

The Cactus leak site entry explicitly identifies Qosina as a victim and claims successful exfiltration of internal files. It does not disclose the exact number of records involved, the specific data types beyond “internal files,” or any ransom amount demanded. The posting includes download links for the alleged stolen material, a common tactic used by this group to pressure victims into payment. Qosina’s own breach notification has not yet quantified affected individuals, leaving the full scope of personal data exposure unknown at this time.

February 27, 2024 marks the first public confirmation of the incident via the ransomware leak site. The company, headquartered at 2002 Orville Drive North in Ronkonkoma, New York, has not released a detailed public statement on the breach as of the latest available information.

Why This Matters for You and Your Family

When a supplier in the medical and biopharmaceutical supply chain is breached, the ripple effects reach ordinary people. Your doctor’s office, hospital, or pharmacy may have ordered components from Qosina using contact details, ordering histories, or billing records that included personal information. If those records were taken, attackers now hold data that can be used for phishing campaigns tailored to healthcare workers or patients. Even without exact victim counts, the disclosure states that real operational files left the company’s control, increasing the chance that names, addresses, phone numbers, or business contacts linked to your family’s healthcare providers are now in criminal hands.

The Doxxing and Identity-Chain Risks

Stolen internal files often contain spreadsheets, emails, vendor lists, or customer databases that link names to addresses, phone numbers, and email accounts. Once published on a ransomware leak site, this information becomes raw material for doxxing chains. Criminals combine it with data from previous breaches to map your online handles back to your real identity, workplace, and family members. Credential leaks of this nature frequently cascade into gaming account takeovers, especially for children whose parent-linked emails or shared family addresses appear in the files. The result is not a single stolen password but an interconnected profile that can be exploited for identity theft, harassment, or financial fraud months or years later.

Cactus Ransomware Group Track Record

Public reporting attributes the emergence of Cactus to mid-2023. The group has since targeted organizations across manufacturing, healthcare, and technology sectors. Notable prior victims include other mid-sized manufacturers and service providers whose internal documents were later published when ransom demands went unmet. Their typical playbook involves initial access through compromised remote desktop credentials or phishing, followed by exfiltration of sensitive files before deploying ransomware. Cactus then uses dual extortion: threatening both data encryption and public release of stolen documents. The group’s leak site serves as both proof-of-breach and a countdown mechanism, applying steady pressure on victims who hope to avoid reputational damage.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, handles, and real-world identity, then use the cleanup to remove what you can.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your data is caught and acted on quickly.
  • Rotate any password you ever used on qosina.com or related vendor portals, and secure those accounts with 2FA through an authenticator app rather than SMS.
  • Cover your entire household with DoxxScan family protection, which extends to dependents and children’s gaming accounts that often chain back to the same family address or parent email.
  • Let remediation specialists handle ongoing takedown requests for any exposed personal documents or broker listings tied to this incident.

The Qosina breach is a reminder that supply-chain compromises in the medical sector can expose ordinary families without them ever being direct customers. Taking concrete steps now limits how far attackers can travel down the identity chain created by this and future leaks. DoxxScan’s continuous monitoring, AI-powered identity-chain mapping, hands-on remediation by specialists, and household coverage including children’s gaming accounts give you practical defense against the long tail of incidents like this one.

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 the filing does not enumerate what was exposed
Disclosed February 27, 2024
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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