high severity April 21, 2025 · 3 min read Unverified claim — what this is

Sinalisa Segurança Viária Ltda Listed by Sarcoma Ransomware Group

If you are a customer of Sinalisa Segurança Viária Ltda, here’s what is being claimed, and what it would mean for you.

Sinalisa Segurança Viária Ltda Sinalisa's history began about four decades ago when the company was founded by the Ypiranga S/A group in 1971 in Rio de Janeiro. In 1982, it was acquired by the ERITRAM group and its headquarters were transferred to the capital of São Paulo. In November 2000, it moved to its current address in the Mooca neighborhood. A pioneer in the Brazilian road marking market, Sinalisa is a forerunner in lane marking painting with solvent-based acrylic paints, water-emulsified acrylic paints, high-thickness emulsified acrylic paints, conventional and high-relief thermoplasti
— from Sarcoma’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

Sinalisa Segurança Viária Ltda Listed by Sarcoma Ransomware Group

On April 21, 2025, Brazilian road-marking company Sinalisa Segurança Viária Ltda appeared on the leak site of the sarcoma ransomware group. The listing indicates that internal files were exfiltrated during a ransomware attack on the firm, which has operated in Rio de Janeiro and São Paulo for more than four decades.

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What Public Reporting Shows

Public reporting on the sarcoma leak site describes the data as internal files taken in a ransomware incident. The exact number of people whose information may have been exposed remains unknown. Available details confirm that Sinalisa was founded in 1971 by the Ypiranga S/A group in Rio de Janeiro, acquired by the ERITRAM group in 1982, and relocated to its current headquarters in the Mooca neighborhood of São Paulo in November 2000. The company specializes in road-marking paints and application techniques across Brazil.

April 21, 2025 marks the date the listing became public. No additional specifics about the volume or exact types of records have been released in available reporting.

Why This Matters for You and Your Family

When a company that has held contracts with government agencies or private clients for road safety projects suffers a breach, employee, customer, supplier, and partner records can be exposed. If your name, address, national ID number, tax ID, phone, email, or banking details ever appeared in Sinalisa’s systems, those records may now be in the hands of criminals. Even if you never directly interacted with the firm, family members whose information was shared through employment, vendor relationships, or public contracts could be affected.

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What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Report details & sourcing

Attributed to Sarcoma · 141 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed April 21, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

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Sarcoma — 141 incidents tracked

Every breach we've attributed to Sarcoma, in one running log. See who else they've hit →

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