high severity April 09, 2023 · 4 min read Unverified claim — what this is

Cementos Bio-Bio Listed by BlackByte Ransomware Group

If you are a customer of Cementos Bio-Bio, here’s what is being claimed, and what it would mean for you.

Cementos Bio Bio S.A. manufactures and sells cement in Chile and internationally. It provides clinker, pozzolana, gypsum, pozzolanic portland, and other cement; and concrete products for housing, buildings, pavement, infrastructure, and mining projects.
— from Blackbyte’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.

Cementos Bio-Bio Listed by BlackByte Ransomware Group

Cementos Bio-Bio was listed on the BlackByte ransomware leak site on April 09, 2023, claiming that the Chilean cement manufacturer suffered a ransomware attack in which internal files were exfiltrated. The company, which produces clinker, pozzolana, gypsum, and various cement and concrete products for construction and mining projects across Chile and internationally, has not publicly quantified how many individuals or records may be affected.

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Primary Disclosure Details

The BlackByte leak site listing states that Cementos Bio-Bio was hit by a ransomware attack and that attackers successfully exfiltrated internal files. The disclosure does not specify the volume of data taken, the exact types of documents involved, or any ransom demand. It simply states the company as a victim and displays samples of the allegedly stolen material. No subsequent regulatory filing or customer notification from Cementos Bio-Bio has altered or expanded on these core facts.

April 09, 2023 marks the date the listing appeared, making this the primary public disclosure of the incident.

Why This Matters for You and Your Family

When a company that supplies materials for housing, infrastructure, and mining projects is breached, the internal files taken can easily contain information that touches ordinary people. Contractors, suppliers, employees, and even customers may have had personal or financial details stored in those systems. Even if the leak site does not detail what was taken, the mere fact that internal files left the network creates long-term exposure. Your data does not need to be in the public sample set to be at risk; once exfiltrated it can circulate in underground markets for years.

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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 Blackbyte · 147 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed April 09, 2023

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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Blackbyte — 147 incidents tracked

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