Was FasseValves hit by ransomware?

FasseValves was listed by the securotrop ransomware operation (United States), 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 securotrop ransomware group?

securotrop 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 FasseValves breach?

securotrop published data attributed to FasseValves. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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FasseValves

Claimed by Securotrop · listed 1 year ago

11m

Age

since listed · data leaked

Status timeline

ListedJul 22, 2025
Data leakeddate unknown

At a glance

Group: Securotrop
Status: Data leaked
Country: United States
Listed on leak site: Jul 22, 2025

About the victim

AI dossier — public-source company profile

FasseValves is a hydraulic solutions manufacturer based in Sidney, Nebraska, founded in 1988. The company specializes in designing and manufacturing multi-function remote hydraulic selectors that enable in-the-cab, push-button control of hydraulic functions for agriculture, construction, and related sectors.

Industry: Hydraulic Equipment Manufacturing
Address: Sidney, Nebraska, United States
Founded: 1988

Attack summary

Severity: low — Data has been published, but no proof files, screenshots, or specific data inventory are detailed in the available post excerpt. Operational impact is unstated.

The securotrop group claims to have attacked FasseValves and published data. No specific details on encryption, exfiltration method, or data types are provided in the available post excerpt.

low

Original description

AI-summarised, not from the leak post

FasseValves is a leading provider of hydraulic solutions based in Sidney, Nebraska. The company specializes in designing and manufacturing multi-function remote hydraulic selectors. Their products allow for in-the-cab, push-button control of hydraulic functions, thereby enhancing the efficiency and safety of equipment operations. Founded in 1988, the company serves sectors like agriculture, construction, and many others.

Sources

Leak posthttp://securo45z554mw7rgrt7wcgv5eenj2xmxyrsdj3fcjsvindu63s4bsid.onion/FasseValves/

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 securotrop

Securotrop is a relatively new ransomware group that emerged in July 2025 and operates with apparent financial motivations, having targeted at least 31 victims across multiple sectors. The group primarily targets English-speaking countries including the United States, Canada, and the United Kingdom, with their attacks focused heavily on manufacturing companies, business services firms, construction organizations, and telecommunications providers. Due to the group's recent emergence and limited public documentation from major cybersecurity agencies and researchers, specific details about their country of origin, operational structure, attack methodologies, and technical capabilities remain largely undocumented in open-source intelligence reports. The targeting pattern suggests a focus on critical infrastructure and industrial sectors that may be willing to pay ransoms to quickly restore operations, though no major high-profile attacks or record ransom demands have been publicly reported by established threat intelligence sources. Given the group's recent formation in mid-2025, Securotrop appears to remain active, though comprehensive analysis of their tactics, techniques, and procedures awaits further documentation by cybersecurity researchers and law enforcement agencies. The group has been linked to 38 public disclosures across our corpus. First observed on a leak site on July 22, 2025; most recent post July 15, 2026. The operation is currently active.

Timeline of this disclosure

July 22, 2025FasseValves listed by securotropon the group's public leak site

Other recent disclosures by securotrop

securotrop has been linked to 38 public victims on Darkfield. A sample of the most recent:

See the full securotrop dossier →

Sector and geography

Geographically, FasseValves is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by securotrop means FasseValves 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, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on securotrop'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.