Tunnel Gnalp-Steg

Gnalp‑Steg, also referred to as Tunnel Gnalp‑Steg or simply Tunnel, is an organisation headquartered in Liechtenstein that operates and maintains the Tunnel Gnalp‑Steg road tunnel. Its primary function is to ensure the safe and efficient flow of traffic through the tunnel by managing the associated traffic control system and related infrastructure. The organisation employs infrastructure personnel who are responsible for routine operations, maintenance, and emergency response within the tunnel environment.

On 3 February 2024 the traffic control system serving the Tunnel Gnalp‑Steg suffered a complete failure that the system manufacturer initially attributed to a malware infection. This incident disrupted normal automated traffic regulation and prompted an immediate investigation into how the malware entered the system and what measures could prevent similar occurrences. The failure was reported publicly through an official media release from the Liechtenstein authorities, which highlighted the need for a thorough forensic analysis.

In response to the outage, the organisation’s infrastructure personnel assumed manual traffic management duties over the following weekend to keep the tunnel operational. To mitigate the impact on road users, temporary construction signals were installed, which may cause minor delays for travelers passing through the tunnel. Restoration efforts are currently underway, with the organisation cooperating closely with both the relevant authorities and the system manufacturer to achieve full operational recovery before the next weekend.

Gnalp‑Steg continues to be identified by its aliases and remains focused on the ongoing operation, maintenance, and safety of the Tunnel Gnalp‑Steg infrastructure, as demonstrated by its handling of the recent malware‑induced incident. The organisation’s role is confined to the tunnel’s traffic control and associated support functions, with no publicly disclosed details regarding its size, ownership structure, or broader market activities beyond those directly tied to the tunnel facility.