Prismecs

Prismecs operates a Swiss reserve power plant that provides reserve electricity generation services. The company is headquartered in Switzerland, indicating its primary operational base within the country. As a reserve power provider, Prismecs maintains readiness to supply electricity when called upon to support grid stability. Its core activity centres on having generation capacity available for dispatch during periods of high demand or unexpected shortfalls. The organisation functions within the energy sector, focusing specifically on reserve power rather than continuous baseload production.

In May 2025, Prismecs experienced a cybersecurity incident when hackers compromised the email account of one of its managers. The compromised account was used to send phishing messages to business partners, one of which contained a malicious link that was blocked by the recipient's antivirus software. The Swiss federal energy office confirmed the incident and noted that the plant's operational IT systems are segregated from the corporate network, preventing any impact on the power supply. Because the event involved a critical infrastructure operator, it may serve as an early test of Switzerland's newly introduced mandatory reporting requirements for cyberattacks on essential services. Despite the email breach, authorities stated that there was no threat to the national power supply due to the separation of systems. The episode highlights the ongoing vulnerability of energy facilities to IT‑security threats even when operational technology remains isolated.