Was isesa.cl hit by ransomware?

isesa.cl was listed by the lockbit5 ransomware operation (Chile), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the lockbit5 ransomware group?

lockbit5 is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the isesa.cl breach?

lockbit5 published data attributed to isesa.cl. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Isesa S.A.

listed as isesa.cl · Claimed by Lockbit5 · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 14, 2026
Data leakeddate unknown

At a glance

Group: Lockbit5
Status: Data leaked
Country: Chile
Listed on leak site: Feb 14, 2026

About the victim

AI dossier — public-source company profile

Isesa S.A. is a Chilean company self-described as a leader in abrasive solutions, tools, and machinery. It operates an e-commerce platform and physical store locations in Cerrillos and Santiago Centro, serving both professional and domestic customers. The company distributes brands such as Wesco, Rasta, and Poliflex, offering products including abrasive discs, drill bits, sandpaper, and power tools.

Industry: Abrasives, Tools & Machinery Retail/Distribution
Address: Cerrillos y Santiago Centro, Región Metropolitana, Chile

Attack summary

Severity: high — Data has been published (not merely threatened), indicating confirmed exfiltration of business data by a major ransomware group; while the specific data types are unconfirmed, a published data dump from a retail/distribution company likely contains customer PII and financial records.

LockBit 5 claims to have attacked Isesa S.A. and the disclosure status is marked as data_published, indicating that exfiltrated data has been released. No specific data volume or ransom demand was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business/operational data
Customer records
Financial documents
Internal company files

What the group claims

Isesa S.A. is a leader in providing a wide range of abrasive solutions, tools, and machinery, with o...

Sources

Victim siteisesa.cl
Leak posthttp://lockbitapt67g6rwzjbcxnww5efpg4qok6vpfeth7wx3okj52ks4wtad.onion/post/d56badb62f78dd241677268ffa5f656d

Source

Indexed 4 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 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 278 public disclosures across our corpus. First observed on a leak site on December 7, 2025; most recent post June 11, 2026. The operation is currently active.

Timeline of this disclosure

February 14, 2026isesa.cl listed by lockbit5on the group's public leak site

Other recent disclosures by lockbit5

lockbit5 has been linked to 278 public victims on Darkfield. A sample of the most recent:

See the full lockbit5 dossier →

Sector and geography

Geographically, isesa.cl is reported in Chile, a country with 4 ransomware disclosures in our corpus.

If your organisation is affected

A listing by lockbit5 means isesa.cl 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.
Monitor for the data appearing on lockbit5'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.