The term ' multifactor authentication' comes from the idea that there are three ways to prove who you are by presenting at least one of the following: Something you know, something you have, or something you are. At $55 it's not the cheapest option, but its sheer versatility makes it a new Editors' Choice winner. The 5C NFC also has a variety of authentication capabilities and will work with just about any recent device you own. Hardware multifactor keys like the Yubico YubiKey 5C NFC provide all the security of competing systems, but they do so without moving parts, batteries, or an internet connection.

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Yubico 5ci