At Kaspersky Lab we analyze the technologies available on cybersecurity market and this time we decided to look at what OS developers are offering for embedded systems. Our primary interest is how and to what degree these OSs can solve cybersecurity-related issues. The vast majority of the operating systems we looked at primarily handle practical functional tasks. Information security features, if they are included in the design, are merely extensions to the existing functionality in the form of plugins, components implementing encryption algorithms or add-in architecture.”]
Source: https://securelist.com/modern-oss-for-embedded-systems/86109/