Disclosure context

About lockbit5

Based on the provided data, LockBit5 appears to be a recently emerged ransomware operation first observed in December 2025, representing what may be a new iteration or rebrand within the LockBit ransomware ecosystem, with primary financial motivations evidenced by their targeting of high-value sectors. Given the LockBit naming convention and the timing of emergence, this group likely operates from Eastern Europe or Russia and may represent either a continuation of previous LockBit operations or a new affiliate group leveraging the established LockBit brand, though specific organizational details remain undocumented by major security agencies. While detailed attack methodologies have not been publicly documented by CISA, FBI, or major security researchers, the group's targeting pattern across 157 victims suggests a broad-spectrum approach focusing on technology, manufacturing, healthcare, and transportation sectors primarily in the United States, Brazil, Germany, Italy, and Mexico. Due to the group's recent emergence in December 2025, there are no publicly documented notable campaigns or major incidents reported by established threat intelligence sources, though the victim count indicates active operations. The group appears to be currently active based on the recent first observation date, though comprehensive analysis from major security agencies has not yet been published given the short timeframe since emergence. The group has been linked to 252 public disclosures across our corpus. First observed on a leak site on December 7, 2025; most recent post May 12, 2026. The operation is currently active.

Timeline of this disclosure

April 14, 2026fastindustria.com.br listed by lockbit5on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, fastindustria.com.br is reported in BR, a country with 189 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.

Ransomware victim disclosure

← All victims

Fast Tecnologia Industrial

listed as fastindustria.com.br · Claimed by lockbit5 · listed 1 month ago

36d

Age

since listed · data leaked

Status timeline

Listed
Apr 14, 2026
Data leaked

At a glance

Group: lockbit5
Status: Data leaked
Country: BR
Sector: Manufacturing
Listed on leak site: Apr 14, 2026

About the victim

AI dossier — public-source company profile

Fast Tecnologia Industrial is a Brazilian manufacturer specializing in industrial equipment and systems for wastewater and effluent treatment (ETE/ETA), serving sectors including sanitation, slaughterhouses, mining, palm oil, olive oil, and pulp & paper. The company produces a broad range of equipment such as centrifugal decanters, dissolved-air flotation units, MBBR treatment systems, and automation panels. It operates under the domain fastindustria.com.br and is based in Brazil.

Industry: Industrial Wastewater & Effluent Treatment Equipment

Attack summary

Severity: medium — Data has been published by the group, confirming exfiltration, but no specific sensitive regulated data categories (PII at scale, medical, financial, government) are identified in the post, and no data volume is stated, limiting severity to medium.

LockBit 5 claims to have attacked Fast Tecnologia Industrial and has published data (disclosed status: data_published), indicating exfiltration of company data; no ransom amount or specific data volume was stated in the post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Company internal files
Business data

What the group claims

Fast Tecnologia Industrial specializes in industrial equipment and systems for wastewater treatment...

Sources

Source

Indexed 1 month 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.