Was Sanko Gosei Technology hit by ransomware?

Sanko Gosei Technology was listed by the payoutsking ransomware operation (United Kingdom), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the payoutsking ransomware group?

payoutsking is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Sanko Gosei Technology breach?

payoutsking published data attributed to Sanko Gosei Technology. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Sanko Gosei Technology

Claimed by Payoutsking · listed 5 months ago

Age

since listed · data leaked

Status timeline

ListedJan 14, 2026
Data leakeddate unknown

At a glance

Group: Payoutsking
Status: Data leaked
Country: United Kingdom
Sector: Technology
Listed on leak site: Jan 14, 2026

About the victim

AI dossier — public-source company profile

Sanko Gosei UK Ltd is the European operation of Sanko Gosei, a global injection moulding and plastics engineering manufacturer founded in 1940 and headquartered in Toyama, Japan. The company provides end-to-end engineering solutions including tooling, injection moulding, painting, coating, and design & engineering services across facilities in the UK, Czech Republic, Hungary, USA, Mexico, India, and China. Its European headquarters is located in Skelmersdale, UK, with a technical coatings facility in Birmingham.

Industry: Injection Moulding & Plastics Manufacturing
Address: 15-17 Seddon Place, Stanley Industrial Estate, Skelmersdale, WN8 8EB, UK
Founded: 1940

Attack summary

Severity: medium — Data is listed as published (disclosed status: data_published), indicating exfiltration has been claimed and data released; however, no specific data inventory, data volume, or proof count is described in the leak post for this victim, and no regulated/sensitive data categories are explicitly enumerated, preventing a higher severity classification.

The group 'payoutsking' claims to have exfiltrated data from Sanko Gosei Technology and lists the disclosure status as 'data_published', indicating data has already been released. No specific data size, ransom demand, or detailed data inventory is provided in the leak post excerpt for this victim.

medium

Original description

AI-summarised, not from the leak post

Sanko Gosei Technology is a Japanese company specializing in development, design, and manufacturing of plastic components. They serve various sectors, including automotive, electrical, & consumer products. Their expertise includes Injection moulding, design assistance, & tool production. Meanwhile, it has international operations, with facilities in Europe, Asia, & America.

The leak post

captured from the group's site

PayoutsKing PayoutsKing Blog News About Partnership Welcome PK MAIN TOX: 535F403A2EA2DC71A392E18D7DB77FEF70845C0B7E5B9114CD30D301870304379C3547E324E2 Company Create Website Country Revenue Employees Actions Data Views Status H****l 2026-04-21 t****.com USA $786M ** Exfiltrated 860GB 0 Declared 1d 02:08 F****p 2026-04-14 fl****.com USA $2.7B ** Exfiltrated &amp; Encrypted 1.1TB 0 Declared 1d 02:08 H****o 2026-04-01 has****.com USA $TBD ** Exfiltrated &amp; Encrypted 4.8TB 0 Declared 1d 02:08 A****y 2026-03-31 ape****.com USA $309M ** Exfiltrated &amp; Encrypted 3TB 0 Declared 2d 00:04 NTN Bearing Corporation of America 2026-04-24 ntnamericas.com USA $1.5B 4700 Exfiltrated 596GB 420 Proof 6d 02:09 About company: NTN Bearing is a producer of ball and roller bearings, with plants around the globe and a strong, domestic manufacturing network. Data description: Confidential, Employees&#39; PII (Personally Identifiable Information), Correspondence, Financial, Engineering, Contracts, Agreements, NDA, FULL INFO SunSource 2026-04-20 sun-source.com USA $2B 3500 Exfiltrated 700GB 3401 Disclosed About company: SunSource is a distribution company, providing products, services, and information in…

Sources

Source

Indexed 5 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 payoutsking

PayoutsKing is a recently emerged ransomware group first observed in July 2025, operating with apparent financial motivations and demonstrating broad geographic and sectoral targeting capabilities. With limited public documentation available from major threat intelligence sources, the group's origin and affiliations remain unclear, though their targeting pattern suggests a professional ransomware operation rather than opportunistic attacks. Based on available victim data, PayoutsKing has compromised approximately 60 organizations across multiple sectors, with primary focus on the United States, Germany, United Kingdom, France, and Spain, targeting manufacturing, healthcare, technology, and construction industries alongside various other sectors. The group's attack methodology, encryption techniques, and whether they employ double or triple extortion tactics have not been publicly detailed by established security researchers or government agencies. Given the group's recent emergence in July 2025, there are no widely reported major campaigns or high-profile incidents documented by reputable sources such as CISA, FBI, or Mandiant at this time. PayoutsKing appears to remain active as of current reporting, though comprehensive threat intelligence profiles from established security firms have not yet been published due to the group's recent emergence. The group has been linked to 100 public disclosures across our corpus. First observed on a leak site on July 7, 2025; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

January 14, 2026Sanko Gosei Technology listed by payoutskingon the group's public leak site

Other recent disclosures by payoutsking

payoutsking has been linked to 100 public victims on Darkfield. A sample of the most recent:

See the full payoutsking dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,526 disclosures indexed across all operators we track. Geographically, Sanko Gosei Technology is reported in United Kingdom, a country with 902 ransomware disclosures in our corpus.

If your organisation is affected

A listing by payoutsking means Sanko Gosei Technology 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.
Monitor for the data appearing on payoutsking'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.