Windows 11 introduces several new security features designed to simplify and strengthen protection from the chip to the cloud. Key innovations include secured-core PCs, which are 60% more resilient to malware, and the Microsoft Pluton Security Processor that isolates sensitive data like credentials. Additionally, features such as multifactor authentication, secure boot, and virtualization-based security are enabled by default, contributing to a reported 58% reduction in security incidents and a threefold decrease in firmware attacks.

Windows 11 enhances password security by promoting passwordless authentication through the use of passkeys, which create unique cryptographic credentials stored securely on devices. This approach significantly reduces the risk of compromise from password spray attacks, which occur at a rate of over 4,000 per second. Users can access applications using Windows Hello or their mobile devices, making the sign-in process more secure and user-friendly.

Windows 11 includes several powerful tools for IT teams, such as Config Refresh, which automatically reverts policies to a secured state if tampered with. This feature can reset settings every 90 minutes by default, ensuring compliance with IT configurations. Additionally, Custom App Control allows only approved applications to run on devices, enhancing overall security by blocking unwanted or malicious code. These tools are designed to simplify security management and reduce the attack surface for organizations.