Nvidia B300 GPUs on Chinese Networks: 12,000 GPU Study

Security firm Lava scanned unauthenticated NVIDIA DCGM Exporter monitoring endpoints and counted over 12,000 GPUs across about 2,000 IP addresses. It reports 32 B300 units among 4,724 GPUs on China-geolocated addresses, though proxies could distort location and most figures are Lava's own, unverified counts. Nearly 60% of GPUs showed zero utilization in a single snapshot. For operators, the lesson is that exposed telemetry reveals hardware, firmware and activity; restrict access and update DCGM Exporter to 4.8.2.