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Nicke Co., Ltd.

listed as Nicke · Claimed by Worldleaks · listed 11 months ago

10m
Age
since listed · data leaked

Status timeline

  1. ListedAug 19, 2025
  2. Data leakeddate unknown

At a glance

Group
Worldleaks
Status
Data leaked
Country
Japan
Listed on leak site
Aug 19, 2025

About the victim

AI dossier — public-source company profile

Nicke Group is a Japanese conglomerate with four main business divisions: clothing and textiles, industrial materials (including non-woven fabrics and specialized products like Genocel® cardiac evaluation plates), human development and real estate (shopping centers, residential developments, golf schools, childcare facilities), and lifestyle distribution. The company operates multiple subsidiary brands and commercial properties across Japan.

Industry
Conglomerate: Textiles, Industrial Materials, Real Estate & Retail, Distribution

Attack summary

Severity: low — No concrete attack details, proof files, or data inventory disclosed. The post is AI-generated placeholder text with no substantive evidence of breach, exfiltration, or operational impact. The company's own 2025/09/10 news release references a separate 'unauthorized access' incident and PII leak, but this ransomware posting provides no linked proof or claims.

The leak post provides no substantive details on the attack claim. The group 'worldleaks' lists the victim with disclosed status 'data_published' but the post content is marked '[AI generated] N/A', offering no description of exfiltration, encryption, data type, or proof.

low

Original description

AI-summarised, not from the leak post

N/A

Sources

Source

Indexed 11 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.

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Disclosure context

About worldleaks

Based on the limited available data, worldleaks is a recently emerged ransomware group that was first observed in May 2025 and appears to be primarily financially motivated, having claimed 134 victims in a relatively short timeframe since its emergence. The group's origin and organizational structure remain unclear, with no publicly documented information from major cybersecurity firms or law enforcement agencies regarding their country of origin, potential affiliations, or operational model. Their targeting patterns indicate a focus on English-speaking countries, particularly the United States, United Kingdom, and Canada, with additional activity observed in Germany and Japan, while their sector targeting shows a preference for healthcare, technology, manufacturing, and consumer services organizations. Due to the group's recent emergence and limited public documentation by established threat intelligence sources, specific details about their attack methodologies, encryption techniques, extortion tactics, and notable campaigns have not yet been comprehensively analyzed or reported by organizations such as CISA, FBI, or major cybersecurity research firms. The group appears to remain active as of the most recent observations, though comprehensive threat intelligence profiling awaits further analysis and documentation by established cybersecurity authorities. The group has been linked to 173 public disclosures across our corpus. First observed on a leak site on May 18, 2025; most recent post July 2, 2026. The operation is currently active.

Timeline of this disclosure

  • August 19, 2025Nicke listed by worldleakson the group's public leak site

Other recent disclosures by worldleaks

worldleaks has been linked to 173 public victims on Darkfield. A sample of the most recent:

See the full worldleaks dossier →

Sector and geography

Geographically, Nicke is reported in Japan, a country with 220 ransomware disclosures in our corpus.

If your organisation is affected

A listing by worldleaks means Nicke 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, JPCERT/CC (Japan), as required for your jurisdiction.
  • Monitor for the data appearing on worldleaks'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.