Ransomware Attack German Drinking Water Association Paralyzed IT Systems

September 29, 2023


Hackers have paralyzed the IT systems of the Stader Land Drinking Water Association (TWV) resulting in technical disruptions. The company website states (translated in EN): At the end of July we fell victim to a ransomware attack. The aim of this was to encrypt our systems. The encryption could be prevented and we have now largely completed the secure reconstruction of our IT. We are supported by external experts and work closely with the relevant data protection and police authorities. The drinking water supply was never affected by the IT security incident and is operating at the usual high level.

With an attack of this type, there is always a risk that the perpetrators will steal data such as address or account details and other sensitive information. Unfortunately, this is now also the case with us. The criminals stole customer data in the context of meter changes and, according to our experts, published it on the darknet. A large number of our customers are affected by this.

Incident Date

July 28, 2023



Estimated Cost


Type of Malware

No Malware identified

Threat Source