CUbIQ plugs quantum security into NVIDIA’s AI networks

CUbIQ Technologies demonstrated a continuous-variable quantum key distribution (CV-QKD) system at ECOC 2026, fitting quantum security into a standard QSFP-28 pluggable module. The system, tested on NVIDIA ConnectX-7 network interface cards and Coherent 200G optics, includes live eavesdropper detection directly on the link, a feature that improves security over encryption methods that offer no proof of secure key travel. “CUbIQ’s mission is to show practical, accessible physical layer security that can extend across AI infrastructure,” says Aaron Albores Mejia, CEO of CUbIQ Technologies. This demonstration proves quantum-safe networking can integrate with existing AI deployments without requiring dedicated hardware. This form factor allows the QKD transceiver to occupy the same port as conventional optics, eliminating the need for dedicated rack space, power supplies, or management planes typically associated with quantum security appliances. The design significantly reduces the logistical hurdles to deploying quantum-safe networking within existing data center infrastructure. CUbIQ Technologies’ approach centers on compatibility with Common Management Interface Specification (CMIS), a standard protocol for managing network devices. By adhering to CMIS, the QKD module can be integrated into existing network management systems without requiring custom software or interfaces. This allows a standard CMIS driver to manage the module, while…