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www.mestojilemnice.cz

Claimed by Krybit · listed 4 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedAug 19, 2026
  2. Data leakeddate unknown

At a glance

Group
Krybit
Status
Data leaked
Country
Czechia
Listed on leak site
Aug 19, 2026

About the victim

AI dossier — public-source company profile

Město Jilemnice is the municipal government of Jilemnice, a historic town of approximately 5,400 inhabitants in the Semily District, Liberec Region, Czech Republic. The city hall serves as an administrative centre with extended municipal powers (obec s rozšířenou působností), managing civil registry, urban planning, social services, building permits, and public administration for surrounding municipalities.

Industry
Municipal Government & Public Administration
Address
Masarykovo náměstí 81, 514 01 Jilemnice, Semily District, Liberec Region, Czech Republic

Attack summary

Severity: medium — Municipal government breach affecting administrative and potentially personal data (civil registry, building permits); no proof files advertised and no operational disruption confirmed, but scope of sensitive PII in municipal records justifies medium classification.

The krybit group claims to have breached the City of Jilemnice's systems. No specific details of data exfiltration or encryption are stated in the leak post; the post is primarily descriptive of the municipality itself.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • municipal records
  • civil registry data
  • building permits
  • administrative files

What the group claims

Město Jilemnice (City of Jilemnice) is the official website of the municipality of Jilemnice, a historic town located i...

The leak post

captured from the group's site
Město Jilemnice (City of Jilemnice) is the official website of the municipality of Jilemnice, a historic town located in Semily District, Liberec Region, Czech Republic, at the foot of the Krkonoše (Giant Mountains), approximately 30 km from Liberec. With approximately 5,400 inhabitants, Jilemnice is recognized as an urban monument zone due to its well-preserved historic town centre. The city serves as an administrative centre with extended municipal powers (obec s rozšířenou působností) covering surrounding municipalities. Jilemnice is historically known as a centre of lace-making and textile industry, and is home to the Krkonoše Museum. The city hall (Městský úřad Jilemnice) manages all municipal services including civil registry, urban planning, social services, building permits, and public administration for the surrounding region. The current mayor (starosta) is Ing. Vladimír Richter.
Masarykovo náměstí 81, 514 01 Jilemnice, Semily District, Liberec Region, Czech Republic
TEL: +420 481 565 111
Altitude: 470 metres above sea level

Sources

Source

Indexed 4 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 krybit

Krybit is an emerging ransomware group that was first observed in April 2026, operating with apparent financial motivations based on their limited documented attacks against diverse sectors. The group's origin and affiliations remain unclear due to limited public intelligence, and it is unknown whether they operate as a Ransomware-as-a-Service model or as an independent entity. With only four known victims documented across geographically diverse regions including Mexico, Austria, Japan, and Botswana, the group appears to employ broad targeting rather than focused regional or sector-specific campaigns, though their attack methodology, encryption techniques, and data exfiltration practices have not been publicly documented by major security firms or law enforcement agencies. No notable high-profile campaigns or significant ransoms have been publicly reported, and no law enforcement actions against the group have been documented. Given the recent emergence of this group and extremely limited public reporting, Krybit's current operational status and capabilities remain largely unknown to the broader cybersecurity community. The group has been linked to 106 public disclosures across our corpus. First observed on a leak site on April 3, 2026; most recent post August 19, 2026. The operation is currently active.

Timeline of this disclosure

  • August 19, 2026www.mestojilemnice.cz listed by krybiton the group's public leak site

Other recent disclosures by krybit

krybit has been linked to 106 public victims on Darkfield. A sample of the most recent:

See the full krybit dossier →

Sector and geography

Geographically, www.mestojilemnice.cz is reported in Czechia, a country with 15 ransomware disclosures in our corpus.

If your organisation is affected

A listing by krybit means www.mestojilemnice.cz 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.
  • Monitor for the data appearing on krybit'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.