Limited resources and large numbers of legacy medical devices make hospital IT infrastructure vulnerable to attack. Private communication between patients and clinicians is cumbersome. Doctors are unable to leverage the latest clinical guidance from multiple medical specialties, especially when treating patients with complex health conditions. The focus of this project is to develop a Cognitive Health Assistant that Learns and Organizes (CHALO). CHALO is developing network security, software assurance, system and data interoperation, applied cryptography, and artificial intelligence solutions to these problems. SRI and its partners plan to transition CHALO technology to enable accessible, resilient healthcare for more Americans.