Codename 4×4 originated in a very simple question: How do we enable any device manufacturer–regardless of their skillset or price target–to create highly-secured, trustworthy, internet-connected devices?
Following this question led us to explore the limitations and possibilities of microcontrollers (MCUs) and their operating systems. It led us to question what properties are required of a high-secured, internet-connected device. It led us to explore how hardware, software, and cloud services work together to create and maintain highly-secured devices.
Codename 4×4 led to Project Sopris and to Azure Sphere.