Alto Calore Servizi S.p.A.

Profile narrative

Alto Calore Servizi S.p.A. operates as an Italian water supplier responsible for the treatment and distribution of drinking water to residential and commercial customers. The company manages the water supply network that serves numerous municipalities across its service area. In addition to delivering water, it oversees the installation, reading and maintenance of customer water meters. These activities are central to its role as a public utility ensuring reliable access to potable water.

The ransomware incident reported on 28 April 2023 highlighted that the firm’s IT systems support database‑related operations and the provision of information to users. When those systems were rendered unusable by the Medusa group, the company could not perform routine data tasks, although water distribution itself continued. A separate incident on 1 April 2023 showed that external water meters are vulnerable to freezing conditions, leading to ruptures that require replacement. In both cases the company communicated directly with affected customers about impacts and remediation steps.

Alto Calore Servizi’s specialization lies in the end‑to‑end management of water services, from source treatment to metering and customer billing, which places it within the Italian water sector. The company’s notable competencies include overseeing the installation and maintenance of customer water meters and advising users on replacement costs when meters are damaged by freezing or negligence. It also demonstrates an operational focus on safeguarding its information technology infrastructure, as shown by its public disclosure of the ransomware attack and the associated risks to data integrity.

Incidents

2 incidents linked to this organisation.