Was Alya Construtora hit by ransomware?

Alya Construtora was listed by the Ransomhouse 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 Ransomhouse ransomware group?

Ransomhouse 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 Alya Construtora breach?

Ransomhouse published data attributed to Alya Construtora. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Alya Construtora

Claimed by Ransomhouse · listed 23 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 7, 2026
Data leakeddate unknown

At a glance

Group: Ransomhouse
Status: Data leaked
Country: Brazil
Sector: Manufacturing
Listed on leak site: Aug 7, 2026

About the victim

AI dossier — public-source company profile

Álya Construtora is a privately owned Brazilian engineering and construction company founded in 1953, specializing in complex infrastructure, industrial, energy, urban mobility, and building projects. Headquartered in Rio de Janeiro, the firm serves as one of Brazil's leading construction firms with over 70 years of operating experience.

Industry: Engineering & Construction
Address: Rua Santa Luzia, 651 – 21º – Centro – Rio de Janeiro – RJ – CEP: 20.030-041
Founded: 1953

Attack summary

Severity: medium — Data published status with no proof files visible in the provided leak post excerpt; no specific data types disclosed; group has posted company details but operational impact and data sensitivity remain unconfirmed.

Ransomware group claims to have compromised Álya Construtora. The group's post confirms data breach but provides no specific claim of exfiltration scope, encryption timeline, or data categories at stake.

medium

What the group claims

Álya Construtora is one of Brazil's leading privately owned engineering and construction companies, specializing in complex infrastructure, industrial, energy, urban mobility, and building projects with more than 70 years of operating experience.

Sources

Source

Indexed 23 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 Ransomhouse

Ransomhouse is a ransomware group that emerged in June 2021, operating primarily for financial gain through extortion campaigns targeting organizations across multiple sectors globally. The group's origin and specific affiliations remain unclear based on publicly available intelligence, though their operational patterns suggest they function as an independent cybercriminal organization rather than a traditional ransomware-as-a-service model. Ransomhouse employs double extortion tactics, stealing sensitive data before deploying their ransomware payload and threatening to publish the information on their leak site if victims refuse to pay the demanded ransom. The group has demonstrated a broad targeting approach, with documented attacks against 187 victims primarily concentrated in the United States, China, United Kingdom, Italy, and Spain, focusing heavily on healthcare, technology, business services, and manufacturing sectors. While specific high-profile campaigns have not been extensively documented by major security firms, the group's consistent victim count and geographic distribution indicate sustained operational capability since their emergence. As of current reporting, Ransomhouse remains active with no known major law enforcement disruptions or confirmed rebranding efforts. The group has been linked to 219 public disclosures across our corpus. First observed on a leak site on June 1, 2021; most recent post August 7, 2026. The operation is currently active.

Also tracked as: RANSOM HOUSE.

Timeline of this disclosure

August 7, 2026Alya Construtora listed by Ransomhouseon the group's public leak site

Other recent disclosures by Ransomhouse

Ransomhouse has been linked to 219 public victims on Darkfield. A sample of the most recent:

See the full Ransomhouse dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,692 disclosures indexed across all operators we track. Geographically, Alya Construtora is reported in Brazil, a country with 207 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Ransomhouse means Alya Construtora 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 Ransomhouse'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.