Physical Specifications Form Factor Connector: USB-A Dimensions: 18mm x 45mm x 3. Applications U2F The U2F application can hold an unlimited number of U2F credentials and is FIDO certified. The YubiKey 5 NFC is also incredibly compact and lightweight, making it easy to keep on you at all times as you can slip it right onto your keychain. The FIDO U2F Security Key uses a USB 2.0 interface. The YubiKey 5 NFC features both a standard USB-A connector making it compatible with computers of all ages - and with NFC wireless technology, you can log in to your accounts on the best iPhone just by having it close by. Hardware security keys, such as the Google Titan, have become a cornerstone of enterprise security, adding a much-needed layer of protection on top of the password. Yubico's YubiKey 5 NFC gets our pick for the best security key for most with its ability to work with a wide variety of devices and slick form factor. (USB-A) The Yubico Security Key series supports a wide array of protocols and is compatible with most of the online services that people use, including Google, GitHub, and Dropbox. By linking critical services like your email account with the best security keys, you can rest easy knowing that you are the only one who can gain access - unlike SMS codes which are subject to social engineering attacks through mobile operators.

Nothing beats having a physical security key in conjunction with two-factor authentication when it comes to securing your accounts. Keep your accounts secure without compromising your laptop's svelte design with Yubico's tiny Nano security key.

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