Telia Finland and QMill have successfully demonstrated a quantum-enhanced data encryption method for mobile networks, capable of withstanding both classical and future quantum computing attacks. This approach utilizes local or cloud-based quantum computers to enable secure communications. The method was tested on critical network infrastructure and presented to the Finnish Defence Forces as part of ongoing evaluations of quantum security technologies. Building on Telia's earlier quantum key distribution testing through the NaQCI.fi initiative, this project aims to expand the application of quantum-enhanced encryption. The demonstration highlights the potential for quantum computing to enhance mobile network security, addressing concerns over the vulnerability of current encryption methods to quantum attacks1. This development matters to practitioners as it signifies a crucial step towards protecting mobile networks against future quantum computing threats, ensuring the confidentiality and integrity of sensitive communications.