Ascom affected by cyber attack

Baar (Switzerland), March 17, 2025

On March 16, 2025, a cyber attack compromised the technical ticketing system of the ASCOM. Other IT systems and customer systems remain unaffected, and our business is fully operational as usual. The investigations against such crimes have been initiated immediately and are in progress. Ascom works closely with relevant authorities.

A group called “Hellcat ransomware gang” has announced on X (former Twitter) that it had violated the Ascom IT infrastructure. The Ascom IT cybersecurity team is investigating the incident and immediately closed the ticketing system. Determining the extension of the attack is part of the ongoing investigation.
As I mentioned, no other IT systems or customer systems were affected. Our business is fully operational as usual. Currently, no preventive action is required on the part of customers and partners. Ascom retains a very close contact with its customers and partners through our regional management and we will keep them updated with the relevant investigation and evolutions in the coming days.

Potential questions from media or other interested parties can be sent to [email protected].

Attachment

• Ascom mediated 170325 EN (