Blue security key NFC for Yubico #Yubico #SecurityKey . The Yubico Security Key NFC (Y255) is a highly secure and convenient accessory for your laptop or desktop. As a product of Yubico, a trusted brand in digital security, this security key provides an extra layer of protection for your devices. With its NFC capabilities, you can easily unlock your computer with a simple tap, making it quick and easy to access your work or personal files. Stay worry-free with this reliable and easy-to-use security solution.