Disclosure context

About cmdorganization

Based on the limited available information, cmdorganization is an obscure ransomware group first observed in May 2026 with only three documented victims to date, suggesting either a newly emerged threat actor or a small-scale operation with primarily financial motivations. The group's targeting pattern shows a geographic focus on Canada, the United States, and Italy, with a sectoral preference for healthcare and construction industries, though the limited victim count makes it difficult to establish definitive targeting criteria. Due to the recent emergence and low victim count, there is insufficient publicly documented information from major cybersecurity firms or law enforcement agencies regarding their specific attack methodologies, encryption techniques, or operational structure. No notable high-profile campaigns or significant ransoms have been publicly reported for this group, likely due to their limited operational scope and recent emergence. Current intelligence suggests the group remains active but operates at a relatively small scale compared to established ransomware families. The group has been linked to 12 public disclosures across our corpus. First observed on a leak site on May 2, 2026; most recent post May 18, 2026. The operation is currently active.

Timeline of this disclosure

May 2, 2026Cytek Biosciences listed by cmdorganizationon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Cytek Biosciences is reported in US, a country with 2,713 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Cytek Biosciences

Claimed by cmdorganization · listed 19 days ago

18d

Age

since listed · data leaked

Status timeline

Listed
May 2, 2026
Data leaked

At a glance

Group: cmdorganization
Status: Data leaked
Country: US
Sector: Healthcare
Listed on leak site: May 2, 2026

About the victim

AI dossier — public-source company profile

Cytek Biosciences is a publicly traded (NASDAQ: CTKB, since 2021) biotechnology company headquartered in Fremont, California, that develops and manufactures full-spectrum flow cytometry instruments, reagents, and software used by researchers and clinicians worldwide. Its product portfolio includes the Aurora, Northern Lights, and Orion instrument families, along with proprietary reagents and cloud-based analysis software. The company serves applications in immuno-oncology, infectious disease, leukemia and lymphoma diagnosis, and transplant monitoring.

Industry: Biotechnology — Flow Cytometry Instruments & Life Science Tools
Address: 47215 Lakeview Blvd, Fremont, California 94538, US
Employees: 201-500
Founded: 2014

Attack summary

Severity: critical — 7.36 TB of data has been published from a NASDAQ-listed healthcare/biotech company operating in clinical diagnostics (leukemia, lymphoma, transplant monitoring). The scale of exfiltration and the company's involvement in clinical applications strongly implies regulated data (patient-adjacent clinical data, PII, financial records) is at risk at significant volume.

The group cmdorganization claims to have exfiltrated 7.36 TB of data from Cytek Biosciences; the disclosure status is listed as data_published, indicating the stolen data has been released or made available. No ransom amount was stated.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Exfiltrated corporate data (7.36 TB)
Potentially proprietary R&D and instrument design data
Potentially customer and clinical researcher records
Potentially financial and business records
Potentially employee PII

What the group claims

A biotechnology firm that develops and supplies advanced, cost-effective flow cytometry instruments and related services used worldwide by researchers and clinicians. Its compact systems and streamlined workflows enable high-throughput, single-cell analysis for applications such as cancer immunology, leukemia and lymphoma diagnosis, and transplant monitoring. Distinguished by offering high-end capabilities at lower cost, the company accelerates scientific discovery through technical innovation, exceptional customer support, and a commitment to ethical practices and community engagement. Headquartered in Fremont, California, it has been publicly traded on NASDAQ since 2021. We have 7.36 TB of downloaded data.

Sources

Victim sitecytekbio.com

Source

Indexed 19 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.