The internals of the YubiKey’s security algorithms currently limits each key to 30+ years of usage. … Primarily because hardware-based keys are significantly more secure than SMS- and software-based options. The YubiKey 5 NFC ($45) is a thin but sturdy device that fits in a standard USB Type-A port and also supports NFC connections. Some models that use this port include (but are not limited to) iPhone SE, iPhone 7, iPhone 8, iPhone X, and most modern iPads (not including the newest iPad Pro, which uses a USB-C port) The YubiKey 5Ci allows for direct connection to iOS/iPadOS devices with a Lightning port. Each device has a unique code built on to it, which is used to generate codes that help confirm your identity. Instead of a code being texted to you, or generated by an app on your phone, you press a button on your YubiKey. The YubiKey is a device that makes two-factor authentication as simple as possible. You can use them in either place, along with your password, to authenticate web logins What Is It? The YubiKey-like other, similar devices-is a small metal and plastic key about the size of a USB stick. They plug into your computer, and some also connect to your phone.
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