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Mammut Sports Group

Claimed by Datacarry · listed 1 year ago

13m
Age
since listed · data leaked

Status timeline

  1. ListedMay 26, 2025
  2. Data leakeddate unknown

At a glance

Group
Datacarry
Status
Data leaked
Country
Switzerland
Sector
Consumer Services
Listed on leak site
May 26, 2025

About the victim

AI dossier — public-source company profile

Mammut Sports Group is a Swiss multinational company specializing in mountaineering and trekking equipment. They produce and retail high-quality outdoor gear including clothing, backpacks, footwear, climbing gear, and sleeping equipment, with emphasis on sustainability and innovation.

Industry
Sporting Goods & Outdoor Equipment

Attack summary

Severity: low — The leak post contains only an AI-generated company description with no substantive evidence of breach details, proof files, or specifics about what data was exfiltrated or how. Disclosure status is 'data_published' but no actual data samples or proof count is evident in the provided post excerpt.

The datacarry group claims to have breached Mammut Sports Group and published data. No specific details are provided in the post regarding encryption, exfiltration scope, or data types compromised.

low

Original description

AI-summarised, not from the leak post

Mammut Sports Group is a Swiss multinational company that specializes in producing and retailing mountaineering and trekking equipment. Known for their high-quality outdoor gear, their product range includes clothing, backpacks, footwear, climbing gear, and sleeping equipment. Noted for their commitment to sustainability and fair working conditions, Mammut emphasizes innovation and technology in their product designs.

Sources

Source

Indexed 1 year 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.

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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.

Also tracked as: DATA CARRY.

Timeline of this disclosure

  • May 26, 2025Mammut Sports Group listed by datacarryon the group's public leak site

Other recent disclosures by datacarry

datacarry has been linked to 16 public victims on Darkfield. A sample of the most recent:

See the full datacarry dossier →

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 829 disclosures indexed across all operators we track. Geographically, Mammut Sports Group is reported in Switzerland, a country with 154 ransomware disclosures in our corpus.

If your organisation is affected

A listing by datacarry means Mammut Sports Group appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, NCSC-CH (Switzerland), as required for your jurisdiction.
  • Monitor for the data appearing on datacarry's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.