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Hitachi High-Tech

Claimed by Coinbasecartel · listed 4 days ago

4d
Age
since listed · data leaked

Status timeline

  1. ListedAug 13, 2026
  2. Data leakeddate unknown

At a glance

Group
Coinbasecartel
Status
Data leaked
Country
Japan
Sector
Manufacturing
Listed on leak site
Aug 13, 2026

About the victim

AI dossier — public-source company profile

Hitachi High-Tech is a Japanese technology company and subsidiary of Hitachi Ltd, headquartered in Tokyo. It specializes in semiconductor manufacturing equipment, analytical and medical instruments, and industrial systems serving healthcare, electronics, and scientific research sectors globally.

Industry
Semiconductor Manufacturing Equipment & Analytical Instruments
Address
Tokyo, Japan

Attack summary

Severity: medium — Data has been published (disclosed_status: data_published) suggesting confirmed exfiltration, but the leak post provides no specifics on data types, volume, or sensitivity. The target is a major multinational in a critical sector, elevating concern despite lack of detail.

The coinbasecartel group claims to have compromised Hitachi High-Tech and published data. No specific details on exfiltration scope, encryption status, or data types are provided in the leak post.

medium

Original description

AI-summarised, not from the leak post

Hitachi High-Tech is a Japanese technology company headquartered in Tokyo, Japan, and a subsidiary of Hitachi Ltd. It operates in the high-technology and precision equipment industry, specializing in semiconductor manufacturing equipment, analytical and medical instruments, and industrial systems. The company serves sectors including healthcare, electronics, and scientific research, supplying solutions globally across manufacturing and laboratory environments.

Sources

Source

Indexed 4 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.

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Disclosure context

About coinbasecartel

CoinbaseCartel is a ransomware group that emerged in September 2025 with financially motivated operations targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity in a short timeframe, compromising at least 102 known victims primarily across the United States, United Arab Emirates, Germany, Canada, and Brazil. Their targeting patterns show a preference for technology companies, financial services organizations, manufacturing entities, and consumer services businesses, suggesting an opportunistic approach focused on organizations likely to have both valuable data and the financial resources to pay ransoms. Given the group's recent emergence and limited public documentation from established threat intelligence sources, details regarding their specific attack methodologies, infrastructure, and organizational structure remain largely unconfirmed by major cybersecurity firms or law enforcement agencies. The group appears to maintain active operations as of late 2025, though comprehensive analysis of their tactics, techniques, and procedures awaits further investigation and reporting by established threat intelligence organizations. The group has been linked to 203 public disclosures across our corpus. First observed on a leak site on September 15, 2025; most recent post August 15, 2026. The operation is currently active.

Also tracked as: coinbase cartel.

Timeline of this disclosure

  • August 13, 2026Hitachi High-Tech listed by coinbasecartelon the group's public leak site

Other recent disclosures by coinbasecartel

coinbasecartel has been linked to 203 public victims on Darkfield. A sample of the most recent:

See the full coinbasecartel dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,692 disclosures indexed across all operators we track. Geographically, Hitachi High-Tech is reported in Japan, a country with 89 ransomware disclosures in our corpus.

If your organisation is affected

A listing by coinbasecartel means Hitachi High-Tech 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 coinbasecartel'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.