Ransomware claims target Gerald Zisser GmbH, an Austrian private company specializing in building technical services, focusing on plumbing and heating, and the attack is attributed to the threat actor krybit. The incident is described as impacting Germany (DE), with the country tag provided as #Germany
Incident Details
- Victim: Gerald Zisser GmbH
- Sector: Business Services
- Country: DE
- Actor: krybit
- Source: http://krybitqsdzwmhnitvwuhvsntfgf2wrhxveyxroxpc44c6gkft2cqldyd.onion/blog/3483b78af6ee44881238e7fc60509b54c0e83edce7687f606c2682e60ab9b981/
- Discovered: 2026-04-08 13:08:39.027782
- Published: 2026-04-08 13:08:21.071325
Information
- Ransomware attack attributed to the actor krybit.
- Gerald Zisser GmbH was targeted.
- Country: DE.
- Gerald Zisser GmbH is a private Austrian company specializing in building technical services.
- Primary focus on plumbing and heating systems.

Disclaimer: This post is based on public claims made by the ransomware group "krybit". I cannot confirm the accuracy of the information. However, I would be happy to share any official statement from the affected organization to provide clarification.