Was Landesbibliothek Coburg hit by ransomware?

Landesbibliothek Coburg was listed by the thegentlemen ransomware operation (Germany), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Landesbibliothek Coburg breach?

thegentlemen published data attributed to Landesbibliothek Coburg. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Landesbibliothek Coburg

Claimed by Thegentlemen · listed 6 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 16, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Germany
Sector: Public Sector
Listed on leak site: Jul 16, 2026

About the victim

AI dossier — public-source company profile

Landesbibliothek Coburg is a regional state scientific library in Bavaria, Germany, located in the historic Ehrenburg Palace. Founded in 1547, it houses approximately 500,000 volumes including rare manuscripts, incunabula, and historical collections from the former Dukes of Coburg. Since 1973, it has been administered by the Free State of Bavaria as a cultural and research institution.

Industry: Public Libraries & Cultural Heritage
Address: Ehrenburg Palace, Coburg, Bavaria, Germany
Founded: 1547

Attack summary

Severity: medium — Data published from a public cultural institution with likely personnel and user records exposed; no confirmation of operational disruption or regulated sensitive data at scale; public sector status elevates concern but scale and content remain unspecified.

The group claims to have attacked Landesbibliothek Coburg and published data from the institution. No specific details are provided in the leak post about encryption, exfiltration scope, or data categories compromised.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Personnel records
Administrative files
User account information
Institutional databases

What the group claims

***.de zoominfo.com/c/landesbibliothek-coburg/429940598 regional state scientific library in Bavaria, Germany, originally founded in 1547. Located in the historic Ehrenburg Palace in Coburg, it houses a vast collection of around 500,000 volumes, including rare manuscripts, incunabula, and the historical book collections of the former Dukes of Coburg. Since 1973, the library has been administered by the Free State of Bavaria, serving as a vital cultural and research institution dedicated to preserving the region's historical heritage

Sources

Victim sitelandesbibliothek-coburg.de

Source

Indexed 6 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 618 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post July 16, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

July 16, 2026Landesbibliothek Coburg listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 618 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 466 disclosures indexed across all operators we track. Geographically, Landesbibliothek Coburg is reported in Germany, a country with 379 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Landesbibliothek Coburg appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CERT-Bund (Germany), as required for your jurisdiction.
Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.