The Internet of Things is not dependable. Everyday, there is more news about attacks and vulnerabilities in critical IoT systems. It is too difficult to build and maintain IoT applications that can be secure and reliable at scale. In 2021, new tools are emerging that help us build IoT applications that are secure by design. This talk will be a deep dive into emerging system architectures and protocols that allow us to bootstrap, scale, and maintain trust between fleets of devices and enterprise services. We’ll dig into architectures for scaling device enrollment, bootstrapping secure and private communication, exchanging authorization credentials in a variety of dynamic business scenarios, enforcing trust policies, and more.