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Ransomware victim disclosure

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Junta Local de Conciliación y Arbitraje de la Ciudad de México

listed as juntalocal.cdmx.gob.mx · Claimed by Devman · listed 9 months ago

60 GB
Data size
8m
Age
since listed · data leaked

Status timeline

  1. ListedNov 1, 2025
  2. Data leakeddate unknown

At a glance

Group
Devman
Status
Data leaked
Country
Mexico
Listed on leak site
Nov 1, 2025
Data size
60 GB

About the victim

AI dossier — public-source company profile

The Junta Local de Conciliación y Arbitraje de la Ciudad de México (JLCA CDMX) is a government labor tribunal of Mexico City responsible for resolving labor disputes, conciliation proceedings, and arbitration between workers and employers under Mexican federal and local labor law. It operates as a dependency of the Mexico City government (CDMX). As a public-sector adjudicatory body, it handles sensitive legal, employment, and personal data related to workers and employers.

Industry
Government Labor Arbitration & Conciliation
Address
Ciudad de México, Mexico

Attack summary

Severity: critical — The victim is a government labor tribunal handling regulated PII at scale (workers, employers, legal proceedings). 60 GB of exfiltrated data from a public-sector legal body likely includes sensitive personal, legal, and employment records. Data has been published (disclosed status: data_published), confirming exfiltration and public exposure of potentially thousands of individuals' data.

The group 'devman' claims to have exfiltrated approximately 60 GB of data from the organization and published it, demanding a ransom of $300,000. The post indicates data has been disclosed following non-payment.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Labor dispute records
  • Personal identification information of workers and employers
  • Legal case files
  • Government administrative documents
  • Potentially financial and employment records

What the group claims

Ransom: 60gb 300k

Sources

Source

Indexed 9 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 devman

The devman ransomware group is a recently emerged threat actor that began operations in April 2025, demonstrating a financially motivated criminal enterprise with a focus on opportunistic targeting across multiple sectors and geographic regions. Given the group's recent emergence and limited public documentation, specific details regarding their country of origin, organizational structure, or potential affiliations with established ransomware-as-a-service operations remain unknown to major cybersecurity agencies and researchers. The group's attack methodology and technical capabilities have not been thoroughly documented by reputable security firms, though their targeting patterns suggest a broad opportunistic approach rather than highly specialized tactics. In the brief period since their emergence, devman has reportedly compromised 184 victims across diverse sectors including technology, healthcare, public sector organizations, and agriculture and food production, with primary targeting concentrated in the United States, France, Svalbard and Jan Mayen, Taiwan, and Thailand, though the inclusion of Svalbard and Jan Mayen in their targeting list may indicate data collection anomalies rather than actual operational focus on this remote Arctic territory. As of current reporting, devman appears to remain an active threat, though the lack of detailed technical analysis or law enforcement advisories suggests they may be operating at a relatively low profile compared to more established ransomware groups. The group has been linked to 184 public disclosures across our corpus. First observed on a leak site on April 6, 2025; most recent post February 4, 2026. The operation is currently active.

Timeline of this disclosure

  • November 1, 2025juntalocal.cdmx.gob.mx listed by devmanon the group's public leak site
Data size
60 GB

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 466 disclosures indexed across all operators we track. Geographically, juntalocal.cdmx.gob.mx is reported in Mexico, a country with 196 ransomware disclosures in our corpus.

If your organisation is affected

A listing by devman means juntalocal.cdmx.gob.mx 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, CERT-MX (Mexico), as required for your jurisdiction.
  • Monitor for the data appearing on devman'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.