What Secure Boot Is (and What It Is NOT)

The Secure Boot is a set of rules and mechanisms designed to ensure that only trusted and authenticated software can run during the boot process of a computer. It acts as a gatekeeper that prevents unauthorized or malicious code from being loaded and executed before the secure operating system even starts. Secure Boot can also ensure that all (or at least the main significant) parts of the boot components are encrypted, so their contents are not readable either.