Windows Hello vs. Enhanced Sign‑in Security: Which sign‑in method actually keeps your Windows 11 PC safer, and what's the difference? Windows 11's latest security update expands Enhanced Sign-in Security to external fingerprint readers. Here's what it actually changes. Microsoft is expanding one of the least understood security features in Windows 11. Beginning with the August 2026 update, Enhanced Sign-in Security (ESS) now supports compatible external fingerprint readers, extending the company's most secure Windows Hello experience to devices without built-in biometric hardware. The timing couldn't be better because Enhanced Sign-in Security has confused users ever since Microsoft introduced it. Some users assume it's simply a newer version of Windows Hello, while others think it's reserved for businesses or Copilot+ PCs. The reality is that Windows Hello and Windows Hello Enhanced Sign-in Security use the same sign-in experience, but they protect your biometric data in different ways. After spending time digging through Microsoft's support page, I think that's the distinction most explanations miss. Enhanced Sign-in Security isn't about making facial recognition more accurate or fingerprint sign-in faster. It's about making the entire authentication process harder to attack. Standard Windows Hello is already one of the best security features Before the Enhanced Sign-in Security feature was introduced, Windows Hello had already replaced passwords with a much stronger authentication model. Instead of storing passwords that can be stolen or reused, Windows Hello creates cryptographic credentials that are attached to the Trusted Platform Module (TPM) available on your computer. Facial recognition and fingerprints are used only to unlock those credentials, and your biometric templates remain on the device rather than being uploaded to Microsoft's servers. For the average home user, that already provides excellent protection against phishing, password reuse, and stolen credentials. The Enhanced Sign-in Security feature doesn't replace the architecture already in place. Instead,