Disclosure context

About datacarry

Datacarry is a newly emerged ransomware group first observed in May 2025, appearing to be financially motivated based on their targeting patterns across multiple industry sectors. The group's origin and operational structure remain largely undocumented by major threat intelligence organizations, with no confirmed country of origin or known affiliations to established ransomware families reported by CISA, FBI, or leading security researchers. Limited public documentation exists regarding their specific attack methodologies, encryption techniques, or whether they employ data exfiltration tactics prior to encryption. The group has claimed at least 16 victims across European nations including Belgium, Sweden, Spain, Italy, and Latvia, with their targeting spanning consumer services, financial services, healthcare, and transportation/logistics sectors. Given the recent emergence of this threat actor in May 2025, datacarry appears to remain active, though comprehensive threat intelligence profiles from established security organizations have not yet been published due to the group's nascent operational timeline. The group has been linked to 16 public disclosures across our corpus. First observed on a leak site on May 26, 2025; most recent post December 6, 2025. The operation is currently active.

Timeline of this disclosure

September 13, 2025Miljödata listed by datacarryon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Miljödata is reported in Sweden, a country with 47 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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Miljödata

Claimed by datacarry · listed 8 months ago

Age

since listed · data leaked

Status timeline

Listed
Sep 13, 2025
Data leaked

At a glance

Group: datacarry
Status: Data leaked
Country: Sweden
Sector: Not Found
Listed on leak site: Sep 13, 2025

About the victim

AI dossier — public-source company profile

Miljödata is a Sweden-based company specialising in the development of systems and software for monitoring environmental quality. Their solutions cover groundwater, surface water, air, and precipitation, and include specialised measuring methods for tracking mercury in the environment. The company offers turn-key solutions for environmental monitoring stations.

Industry: Environmental Monitoring Systems & Software

Attack summary

Severity: medium — Data is listed as published, indicating confirmed exfiltration rather than a mere announcement; however, no regulated PII at scale, medical, financial, or government/defence data is identified, and the scope and sensitivity of the disclosed data are unclear.

The group datacarry claims to have published data belonging to Miljödata, with the disclosure status recorded as data_published; no specific details on encryption or volume of exfiltrated data are stated in the post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Environmental monitoring data
Internal company data (unspecified)

Original description

AI-summarised, not from the leak post

Miljödata, based in Sweden, specializes in developing systems to monitor environment quality. Their products are used in studying environmental changes within aspects like groundwater, surface water, air, and precipitation. They develop measuring methods and systems for tracking mercury in the environment and offer turn-key solutions for environmental monitoring stations.

Source

Indexed 8 months 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.