Ransomware victim disclosure

OSSC Software de Nómina y Capital Humano

listed as ossc.com.mx · Claimed by lockbit3 · listed 1 year ago

14m

Age

since listed · data leaked

Status timeline

Listed
Mar 25, 2025
Data leaked

At a glance

Group: lockbit3
Status: Data leaked
Country: Mexico
Sector: Not Found
Listed on leak site: Mar 25, 2025

About the victim

AI dossier — public-source company profile

OSSC is a Mexican software company founded in 2008 that develops payroll and human capital management solutions. Based in Guadalajara, Jalisco, they provide customizable GIRO payroll software, time tracking, employee kiosks, digital personnel files, and related HR infrastructure services to businesses.

Industry: Human Resources & Payroll Software
Address: Guadalajara, Jalisco, México
Founded: 2008

Attack summary

Severity: high — HR and payroll software company targeted; likely access to sensitive employee and client payroll data at scale. The victim is a B2B software provider serving multiple companies, increasing exposure scope. Data exfiltration appears confirmed by publication, though specific proof count and data categories are not detailed in the truncated post.

LockBit3 claims to have attacked OSSC Mexico and is publishing the company as a victim. The group's post indicates data exfiltration, though specific details on what was encrypted or exfiltrated are not provided in the truncated leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Payroll records
Human resources data
Employee information
Business software/source code
Client data

What the group claims

Greetings! Today we are posting here the new company, "OSSC Mexico". Company Description: In 2008, OSSC was created with a base of experts who already had more than ten years of experience in developing GIRO payroll software. Headquarters:...

Sources

Victim siteossc.com.mx
Leak posthttp://lockbit3g3ohd3katajf6zaehxz4h4cnhmz5t735zpltywhwpc6oy3id.onion/post/ONScXe144Hl1roIe67e2ab79e43cf

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 lockbit3

LockBit 3.0, also known as LockBit Black, is a prominent ransomware-as-a-service operation that emerged in June 2022 as the third major iteration of the LockBit ransomware family, operating with primarily financial motivations and becoming one of the most prolific ransomware groups globally. The group is believed to operate from Russia or former Soviet states, functioning as a sophisticated RaaS platform that recruits affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiates with victims. LockBit 3.0 employs multiple initial access vectors including exploitation of remote desktop protocols, vulnerable VPN appliances, and phishing campaigns, utilizing a fast-encrypting ransomware payload that can complete network-wide encryption in minutes while implementing triple extortion tactics that include data theft, encryption, and threats to leak stolen information on their dedicated leak site called "LockBit Black Blog." The group has claimed responsibility for attacks against thousands of organizations worldwide, with notable victims including major corporations and critical infrastructure entities across their primary target countries of the United States, France, United Kingdom, Germany, and Italy, focusing heavily on business services, technology, manufacturing, healthcare, and government sectors. Despite law enforcement disruptions including Operation Cronos in February 2024 which temporarily seized their infrastructure and websites, LockBit has demonstrated resilience by quickly rebuilding their operations and continuing to recruit new affiliates and victims. The group has been linked to 2,016 public disclosures across our corpus. First observed on a leak site on June 29, 2022; most recent post December 5, 2025. The operation is currently active.

Timeline of this disclosure

March 25, 2025ossc.com.mx listed by lockbit3on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, ossc.com.mx is reported in Mexico, a country with 92 ransomware disclosures in our corpus.

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.