What is a USB security key, and how do you use it?

The best hardware security keys for two-factor authentication - The Verge

OnlyKey DUO - Dual USB-C and USB-A Security Key

Google Develops Quantum-Safe Security Keys - IEEE Spectrum

What is a security key and do I need one for Azure multi-factor authentication (MFA) for students/alumni? How do I enroll a security key for MFA? – The Community Solution Help Desk

How to Set Up and Use a YubiKey for Online Security

Google Offers a USB-Based Security Key for Password-Free Logins

How to Make a USB Security Key on Win 10 [Detailed Tutorial] - MiniTool Partition Wizard

Winkeo-C FIDO2, hands on: A reliable and affordable USB-C security key

How to Make a USB Security Key for Your PC or Mac

New Yubico security keys let you log in with a tap to your USB-C port

A Physical Key to Your Google Account