End-to-end can mean different things to different people. For a product architect, it is a journey from hardware, to firmware, to potentially hypervisor, container, OS, libraries and apps. For a network architect, it is a journey from endpoints, to gateways or collectors, to the cloud back-end. For a product manager, a journey managing long supply chains and people from General Availability (GA), to updates, to End-of-Life (EOL). From a cybersecurity and data privacy perspective, it is all of the above. What could possibly go wrong from questions of scale, to analytics, to unintended consequences, to third party updating, and what are the top three things we can do about it?