Always worried about hitting the thing accidentally and breaking it.

The device is supposed to do many things that I want, but it'd be nice if the maker had provided some direction in how to accomplish the things it's supposed to do

The only complaint I have about this Yubikey 4 is that it's so tedious finding all the cool things you can do with it

Great little device to keep your things secure

Can't say enough good things about the YK4.

Certain things work on the front USB ports, while other features do not.

Buying a YubiKey finally convinced me to two-factor all of the accounts, a good thing, obviously.

What you get off their site is written for techies who work in the industry...definitely not an easy thing to configure.

The only complaint I have about this Yubikey 4 is that it's so tedious finding all the cool things you can do with it

Also, different things work on different computers.

The nice thing is the actual cryptographic key is stored on the YubiKey itself and not with the website, so your login info is always secure

Yubikeys are Awesome, I use them for all kinds of neat things.

Love this thing