Windows 8 is the most secure version of the Windows operating system yet. Windows Defender is part of Windows 8, and its enabled by default so you get protection right out of the box. Dynamic Access Control lets IT admins restrict access to files and folders based on users and groups. Microsoft wants individuals and organizations to migrate toward using apps that are developed to work within the Start screen Modern UI (the only software that will run with Windows RT) Windows 8 users will be able to use the App Store.”]
Source: https://www.csoonline.com/article/2132449/windows-8-raises-the-bar-for-pc-security.html