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TSMX

listed as tsmx.net.br · Claimed by Funksec · listed 1 year ago

17m
Age
since listed · data leaked

Status timeline

  1. ListedJan 28, 2025
  2. Data leakeddate unknown

At a glance

Group
Funksec
Status
Data leaked
Country
Brazil
Sector
Technology
Listed on leak site
Jan 28, 2025

About the victim

AI dossier — public-source company profile

TSMX is a Brazilian technology company providing integrated software (SGP—Sistema de Gestão para Provedores), proprietary cloud infrastructure, and 24/7 support for internet service providers. Their platform centralizes subscriber management, billing, network operations, and fiscal compliance, serving providers ranging from 200 to 200,000 subscribers.

Industry
Software & Cloud Services for Internet Service Providers

Attack summary

Severity: high — TSMX operates critical infrastructure for ISPs and manages sensitive financial, subscriber, and fiscal data at scale for hundreds of customers. Compromise of their systems could affect thousands of end users and significant business operations, even without confirmed proof files documented in the captured post.

The ransomware group funksec claims to have attacked TSMX; however, no leak post details were captured, and the disclosure status indicates data was published. Without the actual leak post, the specific claims (encryption, exfiltration, or both) and affected data inventory cannot be confirmed.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Subscriber/customer records
  • Financial and billing data
  • Network infrastructure configurations
  • Fiscal/tax documentation
  • Potentially client databases

Sources

Source

Indexed 1 year 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 funksec

Funksec is a recently emerged ransomware group first observed in December 2024, operating with apparent financial motivations based on their targeting patterns and victim acquisition approach. The group's origin and potential state affiliations remain unclear due to their recent emergence, though they appear to operate independently rather than as a Ransomware-as-a-Service model based on available intelligence. With 172 documented victims across multiple countries, Funksec has demonstrated a broad targeting approach, primarily focusing on the United States, India, Brazil, Spain, and Israel, with particular emphasis on technology companies, government entities, educational institutions, and business services organizations. The group's attack methodology, encryption techniques, and specific tactics, techniques, and procedures remain largely undocumented by major threat intelligence firms, though their rapid victim acquisition suggests an established operational capability. Given the group's recent discovery in December 2024, there have been no widely reported major campaigns or high-profile incidents that have drawn significant public attention from law enforcement or cybersecurity organizations. Funksec remains active as of early 2025, continuing to target organizations across their established geographic and sectoral preferences. The group has been linked to 172 public disclosures across our corpus. First observed on a leak site on December 4, 2024; most recent post March 18, 2025. The operation is currently inactive.

Timeline of this disclosure

  • January 28, 2025tsmx.net.br listed by funksecon the group's public leak site

Other recent disclosures by funksec

funksec has been linked to 172 public victims on Darkfield. A sample of the most recent:

See the full funksec dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, tsmx.net.br is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by funksec means tsmx.net.br 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.br (Brazil), as required for your jurisdiction.
  • Monitor for the data appearing on funksec'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.