While that is comfortable, what I would like to see is someone who programs an app that can encrypt any file, folder or disk drive allowing you to authenticate those using a YubiKey. In fact, if you subscribe to BoxCryptor, you can encrypt individual files on your Mac, upload them encrypted to any cloud service out there and enjoy 100% security without ever having to revert to authentication apps or SMS’ed codes. However, they can also be used to lock/unlock your computer, including a Mac. The YubiKey 5Ci and NFC work directly with Boxcryptor, DocuSign, Dropbox, Envato, Facebook, Google accounts, Instagram, a slew of enterprise-level systems, platforms like WordPress and Joomla, etc. The YubiKey 5Ci’s connectors are made of corrosion-free steel. YubiKeys are waterproof and crushproof and can be attached to a lanyard or keyring.

The standard-sized YubiKeys, such as the YubiKey NFC version I tested, are made of injection moulded plastic encasing the circuitry, while the USB-connector and touchpad consist of military-grade hardened gold. The YubiKey as a device is nearly indestructible. Using a YubiKey is also a matter of convenience as many service providers allow you to get rid of having to enter the one-time password (OTP). In addition, the YubiKey 5 series can be used in conjunction with a PIN for user verification - the PIN unlocking the device locally and touch needed for the YubiKey to perform the authentication. To start with the latter: a physical key requires - literally - a human touch and cannot be hacked remotely. Why would you need a YubiKey when a one-time password - usually a six-digit number - is considered secure enough by service providers? Convenience is one reason and an added layer of security is another. The former is a USB-A key with near field communications capabilities, while the latter is a dual-port key for USB-C and Lightning devices such as the iPhone/iPad range, but also Android devices and, indeed, the Mac.

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