 Hello and welcome to this video about LoRaWAN security. Security is becoming more and more important in today's world, and that's true especially for the IoT use case. Devices which are connected through public or private networks can be easy target for hackers and that can result in massive loss of money or reputation. Luckily, security is deeply embedded into LoRaWAN specification. Devices need to authenticate before joining the network and they also encrypt the application payload to communicate securely. ST offers multiple solutions to address security, including the secure firmware update and secure boot, the secure firmware install at untrusted manufacturer, the secure way of provisioning a keys, at last but not least it offers multiple hardware and software solution embedded inside the STM32WL. So let's now have a look at the agenda. We will start with the specification of LoRaWAN focusing on security. In next chapter, we will describe the building blocks which are necessary to build a secure and device. Then we will review the software and hardware measures that can be taken specifically on STM32WL. In the next chapter, we will introduce key management services and before the end, we will describe secure firmware install, which is the solution to securely install firmware at untrusted manufacturer. And at the end, we will demonstrate the KMS. So let's get started. Thank you.