high severity September 17, 2025 · 3 min read Unverified claim — what this is

IAD GmbH Listed by Sarcoma Ransomware Group

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

IAD GmbH In addition to our traditional training and certification services, you can also take advantage of other services: from our in-house Pearson VUE test centers in Erfurt, Jena, Leipzig, Marburg, and Nordhausen, to room and hardware rental, to booking our experienced consultants and recruiting skilled workers.Geo: Germany - Leak size: 43 GB Archive - Contains: Files, SQL, Exchange
— 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.

IAD GmbH Listed by Sarcoma Ransomware Group

On September 17, 2025, German training and certification company IAD GmbH appeared on the leak site of the sarcoma ransomware group. The attackers published a 43 GB archive containing internal files, SQL databases, and Exchange data after the company failed to meet their demands.

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Reported Details of the Breach

Public reporting indicates the incident began as a ransomware attack in which sarcoma exfiltrated data before encrypting systems. The leaked material includes business files, database exports, and email server contents from IAD GmbH, which operates Pearson VUE test centers in Erfurt, Jena, Leipzig, Marburg, and Nordhausen. The group gave the company a deadline to pay or face full publication; when that deadline passed, the 43 GB archive was posted on their leak site.

At present the exact number of individuals whose information appears in the archive remains unknown. The data types exposed suggest that employee records, partner contracts, customer booking details, and internal communications may have been included.

Why This Matters for You and Your Family

When a company like IAD GmbH loses control of SQL databases and Exchange mailboxes, the information inside can be used to target anyone who trained there, took a certification exam, or had their details stored as a client or employee. Names, addresses, dates of birth, email accounts, and phone numbers are common in such leaks and can be combined with other publicly available data to build a complete profile.

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

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Found in breach recordsverifiedreported — unverified

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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 September 17, 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

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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