Lauri has developed secure systems almost 30 years, including smartcards, mobile phones and cryptographic systems. While Lauri's main job has been to create things, finding vulnerabilities has always been a large and interesting part of this. Creating security that fits to the problem at hand is a key driver for Lauri. This often means not only improving security, but also combining security solutions with other important goals Multiple times this has resulted in new cryptographic solution where standard solutions are unsuitable. Lauri's main focus has been on embedded devices. The most notable creation has been the early work for Trusted Execution Environments, before TEE name was coined. Since 2019 Lauri has been working at Wapice Oy, helping customers implement industrial IoT securely and supporting in challenging cryptography designs.