Hochsauerland-Energie

Hochsauerland-Energie, also known by the abbreviation HE, is an energy utility headquartered in Germany. The company supplies electricity and natural gas to customers in the Hochsauerland region, serving residential, commercial and industrial sectors. Its operations are focused on the reliable delivery of power and gas to households and businesses within its service area. The utility operates under the legal name Hochsauerland-Energie and is commonly referenced by its alias in regional communications. As a regional provider, it contributes to the local energy infrastructure and supports the economic activity of the surrounding communities.

In September 2023, Hochsauerland-Energie experienced a cyberattack that involved malware targeting its IT infrastructure alongside its sister organization Hochsauerlandwasser. The attack forced a temporary shutdown of internal systems, disrupting customer service portals, billing functions and financial operations while the supply of electricity and gas remained uninterrupted. The utility’s management publicly stated that no customer data theft was confirmed and that essential service continuity was preserved throughout the incident. Following the attack, the company refused to meet the ransom demand, citing ethical and security concerns, and filed a criminal complaint with law enforcement authorities. Customer inquiries were redirected to alternative contact channels, and non‑essential service modifications such as payment adjustments were postponed until systems were verified as clean and restored.

The incident highlighted Hochsauerland-Energie’s emphasis on maintaining operational resilience of its core supply networks even when administrative systems are compromised. By prioritizing the protection of physical infrastructure over paying extortionists, the utility demonstrated a security posture aligned with industry best practices for critical energy providers. The coordinated response with Hochsauerlandwasser underscored the interdependence of regional utility services and the value of joint incident management. While the full restoration of IT services awaited forensic verification to ensure complete malware eradication, the company kept stakeholders informed through transparent communication. These actions reflect the organization’s commitment to safeguarding both service delivery and customer trust in the face of evolving cyber threats.