high severity August 05, 2025 · 3 min read Unverified claim — what this is

CI Engineering Listed by Cicada3301 Ransomware Group

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

CI Engineering was listed on Cicada3301's leak site. Cicada3301 claims to have stolen internal data. This is the group's claim, not a confirmed finding.

CI Engineering Listed by Cicada3301 Ransomware Group

On August 5, 2025, the ransomware group Cicada3301 listed CI Engineering on its leak site and began a countdown timer showing 700 GB of internal files exfiltrated from the company.

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What Public Reporting Shows

Public reporting indicates the listing appeared on the Cicada3301 leak site hosted on the dark web. The entry shows a status countdown of 0 days, 23 hours, 23 minutes and 40 seconds at the time of initial publication, along with a claimed data size of 700 GB. Available reporting describes the exposed material as internal files taken during a ransomware attack. The number of people whose information appears in the files remains unknown.

Industry research from sources such as DoxxScan™ continuous monitoring has previously shown that employee and customer records from engineering and technology firms frequently surface in ransomware leaks, often within days of the initial posting.

Why This Matters for You and Your Family

When a company like CI Engineering suffers a breach, the information inside those 700 GB of files can include names, addresses, dates of birth, contact details, and internal correspondence that directly affect you or someone you know. If your employer, your child’s school, your doctor, or a vendor you use works with CI Engineering, your personal data may now sit on a ransomware site.

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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 Cicada3301 · 75 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed August 05, 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.

Threat-actor tracker

Cicada3301 — 75 incidents tracked

Every breach we've attributed to Cicada3301, in one running log. See who else they've hit →

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