Discuss and provide examples on the implementation of these mechanisms for Windows and POSIX operating systems. Instructions

INSTRUCTIONS
Description
When it comes to keeping a system and its information safe, security is the most important part of an operating system.
There are various aspects to the security piece in an operating system:
protocols
kernel
encryption
Discuss and provide examples on the implementation of these mechanisms for Windows and POSIX operating systems.
Instructions
Your essay should be at least 3 pages in length, in APA format, with proper citations.