Disclosure context

About lamashtu

Based on the limited available information, Lamashtu is an emerging ransomware group that was first observed in April 2026, appearing to be financially motivated based on their operational patterns. The group's origin and potential affiliations remain unclear due to their recent emergence and limited public documentation by major threat intelligence organizations. Lamashtu's attack methodology and specific technical capabilities have not been extensively documented by established security researchers, though their targeting patterns suggest they employ standard ransomware deployment techniques across multiple industry verticals. The group has conducted at least 8 confirmed attacks, demonstrating a geographically diverse targeting approach with victims identified in France, Italy, the United States, Singapore, and Malaysia, while focusing primarily on business services, manufacturing, transportation and logistics, hospitality and tourism, and energy sectors. Given the group's recent first observation in April 2026 and limited public threat intelligence reporting from established sources like CISA, FBI, or major security firms, Lamashtu appears to represent a newly active threat actor whose current operational status and long-term capabilities require further monitoring and analysis. The group has been linked to 30 public disclosures across our corpus. First observed on a leak site on April 13, 2026; most recent post May 19, 2026. The operation is currently active.

Timeline of this disclosure

May 8, 2026Acros Sport GmbH listed by lamashtuon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Acros Sport GmbH is reported in DE, a country with 333 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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Acros Sport GmbH

Claimed by lamashtu · listed 12 days ago

12d

Age

since listed · data leaked

Status timeline

Listed
May 8, 2026
Data leaked

At a glance

Group: lamashtu
Status: Data leaked
Country: DE
Sector: Manufacturing
Listed on leak site: May 8, 2026

About the victim

AI dossier — public-source company profile

Acros Sport GmbH is a German manufacturer of high-end bicycle components, specialising in precision bearing technology including headsets (Steuersätze) and bottom brackets (Innenlager). The company is based in Renningen, near Stuttgart, Germany, and sells directly to consumers via its website acros-components.com. It positions itself as a specialist supplier focused on reliability and service for cyclists.

Industry: Bicycle Components Manufacturing
Address: Benzstraße 58, 71272 Renningen, Germany
Founded: 1999

Attack summary

Severity: medium — Data has been published (disclosed status: data_published), confirming exfiltration occurred, but no specific data categories, volume, or regulated/sensitive data (PII at scale, financial, medical) are described, limiting severity to medium.

The ransomware group Lamashtu claims an attack on Acros Sport GmbH with a disclosed status of 'data_published', indicating exfiltration and publication of company data. No specific data categories, ransom demand, or data size were stated in the post.

medium

What the group claims

Acros Sport GmbH is a high-end German bicycle component manufacturer based in Renningen, near Stuttgart. Founded in 1999, the company is a specialist in precision bearing technology for cycling

Sources

Source

Indexed 12 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.