Microsoft will introduce Enhanced Sign-in Security (ESS) in the August 2026 update for Windows 11, which will support compatible external fingerprint readers. ESS aims to strengthen the authentication process against potential attacks by shifting processing to isolated, hardware-protected environments using Virtualization-Based Security (VBS) and TPM 2.0 technology. Unlike standard Windows Hello, which processes biometric authentication through the operating system, ESS-compatible devices perform more processing within the hardware itself, ensuring that only authentication results are sent to the OS. To enable ESS, users must navigate to Settings > Accounts > Sign-in options and follow prompts to set up their fingerprint recognition. Existing non-ESS biometric enrollments will be removed during the upgrade to ensure security.