high severity June 22, 2026 · 4 min read Unverified claim — what this is

Aerospace & Advanced Composites GmbH Listed by Aurora Ransomware Group

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

(AAC) — an Austrian space-materials R&D company headquartered in Wiener Neustadt, with deep ties to the European Space Agency. Obtained two complete NAS snapshots spanning 30+ years of operations: aacdata (31 December 2022) — 123 GB: the complete Testhouse, R&D, and engineering share, including the ESA thermal vacuum test archive, polymer composites formulations, and 22 Outlook PST email backups. aacdata1 (14 January 2025) — 86 GB: the administrative share, including managing director's full PC backup (browser credentials, passport scans), 15 years of financial statements, shareholder agr
— from Aurora’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.

Aerospace & Advanced Composites GmbH Listed by Aurora Ransomware Group

On June 22, 2026, Aerospace & Advanced Composites GmbH appeared on the leak site of the aurora ransomware group. The Austrian company, based in Wiener Neustadt and closely linked to the European Space Agency, had two complete NAS snapshots stolen: 123 GB from December 2022 containing its entire Testhouse, R&D, and engineering data, plus 86 GB from January 2025 that included administrative records and the managing director’s full PC backup.

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What Public Reporting Shows

Public reporting indicates the attackers obtained two full snapshots spanning more than 30 years of operations. The first, labeled aacdata (31 December 2022), totals 123 GB and holds the complete engineering share, including the ESA thermal vacuum test archive, polymer composites formulations, and 22 Outlook PST email backups. The second, aacdata1 (14 January 2025), is 86 GB and contains the administrative share along with the managing director’s browser credentials, passport scans, and 15 years of financial statements and shareholder agreements.

Available reporting describes the data as having been exfiltrated during a ransomware attack. No confirmed victim count for individuals has been published, but the breadth of the material means any employee, contractor, customer, or partner whose information passed through those systems could be affected.

Why This Matters for You and Your Family

When a company’s internal drives are stolen, the information rarely stays inside corporate walls. Passport scans, email archives, and financial records can be used to impersonate people, file fraudulent taxes, or open accounts in their name. If you or anyone in your household has ever worked with AAC, supplied materials, or been named in correspondence stored on those servers, your personal details may now sit on a ransomware leak site.

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

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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 Aurora · 45 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed June 22, 2026

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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Aurora — 45 incidents tracked

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

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