Was Exacta Optech Labcenter hit by ransomware?

Exacta Optech Labcenter was listed by the thegentlemen ransomware operation (Brazil), 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 thegentlemen ransomware group?

thegentlemen 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 Exacta Optech Labcenter breach?

thegentlemen published data attributed to Exacta Optech Labcenter. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Exacta + Optech Labcenter S.p.A.

listed as Exacta Optech Labcenter · Claimed by Thegentlemen · listed 21 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 30, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Brazil
Sector: Healthcare
Listed on leak site: Aug 30, 2026

About the victim

AI dossier — public-source company profile

Exacta + Optech Labcenter S.p.A. is an Italian distributor of instruments, consumables, and reagents for scientific laboratories, founded in 1974. The company supplies laboratory optics and instruments under its Optech brand (microscopes, spectrophotometers, refractometers, polarimeters, micropipettes), chemicals, lab furniture, and designs turnkey laboratories. It serves pharma, food, petrochemical, environmental, educational, and oenology sectors, operating as Hach-Lange's worldwide official partner.

Industry: Scientific Laboratory Equipment & Reagent Distribution
Address: Via Bosco 21, San Prospero (Modena), Italy
Employees: 35–45
Founded: 1974

Attack summary

Severity: low — The leak post contains no evidence of proof files, screenshots, or specific data exfiltration claims. The post is an announcement/listing without demonstrated proof or stated operational impact.

The threat actor claims to have compromised Exacta + Optech Labcenter. The leak post does not specify whether encryption, data exfiltration, or both occurred, nor does it detail what data categories are at stake.

low

What the group claims

exactaoptech.com zoominfo.com/c/exactaoptech-labcenter-spa/426158257 Exacta + Optech Labcenter S.p.A. is an Italian one-stop distributor of instruments, consumables and reagents for scientific laboratories, founded in 1974/75 by Gian Amico Alessandrini and headquartered at Via Bosco 21, San Prospero (Modena). It supplies lab optics and instruments under its own Optech brand (biological/stereo/inverted microscopes, spectrophotometers, refractometers, polarimeters, micropipettes, cuvettes), chemicals, lab furniture, and designs turnkey laboratories; market segments include pharma, food, petrochemical/Oil&Gas, environment, education and oenology — where it is Hach-Lange's worldwide official partner. Its 1,500-page catalogue and e-shop list ~100,000 items; the team of ~35–45 includes 7 dedicated service technicians, backed by agreements with Avantor, Honeywell and LLG and the acquisitions of Ing. C. Bullio (2006) and Alkimia (2022). In 2024 the company rebranded from EXA

Sources

Victim siteexactaoptech.com

Source

Indexed 21 hours 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 thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 807 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post August 30, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

August 30, 2026Exacta Optech Labcenter listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 807 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,608 disclosures indexed across all operators we track. Geographically, Exacta Optech Labcenter is reported in Brazil, a country with 208 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Exacta Optech Labcenter 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 thegentlemen'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.