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Kaiser Enterprise (GK Corp)

listed as gkcorp.com · Claimed by Black Basta · listed 2 years ago

1.5 TB
Data size
2. Account records
21m
Age
since listed · data leaked

Status timeline

  1. ListedOct 21, 2024
  2. Data leakeddate unknown

At a glance

Group
Black Basta
Status
Data leaked
Country
United States
Listed on leak site
Oct 21, 2024
Data size
1.5 TB
Records
2. Account

About the victim

AI dossier — public-source company profile

Kaiser Enterprise is a diversified industrial conglomerate operating through multiple divisions and subsidiaries, including paint shops, battery manufacturing, hyperscale data centers, wastewater treatment, HVAC systems, and fire protection. The company operates approximately 1.3 million square feet of manufacturing facilities across multiple U.S. locations and the UK, with 1,600 employees and full in-house design, engineering, fabrication, and installation capabilities.

Industry
Industrial Manufacturing & Engineering Services
Address
5555 New King Drive, Troy, MI 48098, United States
Employees
1600

Attack summary

Severity: high — Confirmed exfiltration of 1.5 TB including regulated PII at scale (employee personal documents, HR records), financial/accounting data, and confidential business information. Large established manufacturing enterprise with 1,600 employees and critical infrastructure operations (data centers, wastewater treatment).

Black Basta claims to have exfiltrated approximately 1.5 TB of data from Kaiser Enterprise, including corporate records, financial/accounting data, employee personal documents, HR records, project files, NDAs, and development data.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate data
  • Accounting & Finance records
  • Budget documents
  • Employee personal documents
  • Human Resources records
  • Project files
  • Confidential data & NDAs
  • Development data

What the group claims

The Kaiser Enterprise is made up of multiple divisions & subsidiaries. From a turn-key paint shop, to a battery manufacturing facility, to a turn-key hyperscale data center, to a wastewater treatment facility: the Kaiser Enterprise has a wide range of capabilities. Importantly, this team has the in-house resources to design, engineer, fabricate and install.SITE: www.gkcorp.com Address : 5555 New King Drive Troy, MI 48098 United StatesTEL#: 313.368.3100ALL DATA SIZE: ≈1.5tb+ 1. Corporate data 2. Accounting, Finance 3. Budget 4. Emoployees personal docs 5. Human Resources 6. Projects 7. Confidential data, NDAs 8. Development data & etc…

Sources

Source

Indexed 2 years 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 Black Basta

Black Basta is a financially motivated ransomware group that emerged in April 2022 and has since compromised approximately 800 organizations worldwide. The group operates as a Ransomware-as-a-Service (RaaS) model with suspected ties to the now-defunct Conti ransomware operation, though their exact country of origin remains unconfirmed by law enforcement agencies. Black Basta primarily gains initial access through phishing campaigns, exploitation of known vulnerabilities, and credential stuffing attacks, subsequently deploying their custom ransomware that employs ChaCha20 encryption algorithm and employs double extortion tactics by exfiltrating sensitive data before encryption and threatening to publish it on their leak site if ransom demands are not met. The group has demonstrated a preference for targeting organizations in the United States, United Kingdom, Germany, Canada, and Italy, with a particular focus on business services, manufacturing, technology, healthcare, and agriculture sectors. Notable victims have included various healthcare systems and manufacturing companies, though specific ransom amounts and high-profile attacks have not been widely disclosed in public law enforcement advisories. As of 2024, Black Basta remains an active threat with continued operations and regular updates to their leak site indicating ongoing compromise activities. The group has been linked to 1,323 public disclosures across our corpus. First observed on a leak site on April 26, 2022; most recent post January 11, 2025. The operation is currently inactive.

Also tracked as: BlackBasta.

Timeline of this disclosure

  • October 21, 2024gkcorp.com listed by Black Bastaon the group's public leak site
Data size
1.5 TB
Records
2. Account

Other recent disclosures by Black Basta

Black Basta has been linked to 1,323 public victims on Darkfield. A sample of the most recent:

See the full Black Basta dossier →

Sector and geography

Geographically, gkcorp.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Black Basta means gkcorp.com 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, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Black Basta'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.