The Medical Device Innovation, Safety and Security Consortium (MDISS) recently launched the first of more than a dozen planned device security testing labs and cyber-ranges. The new MDISS World Health Information Security Testing Lab (WHISTL) facilities will comprise a federated network of medical device security testing labs, independently owned and operated by MDISS-member organizations including healthcare delivery organizations, medical device manufacturers, universities and technology companies. Each WHISTL facility will launch and operate under a shared set of standard operating procedures. The goal is to help organizations work together to more effectively address the public health challenges arising from cybersecurity issues emergent in complex, multi-vendor networks of medical devices.