Yubico - YubiKey 5 Nano - Two-factor authentication (2FA) security key, connect via USB-A, compact size, FIDO certified - Protect your online accounts

I think some of the 1 and 2 star reviewers need to take more time to understand exactly what it is they're buying.Firstly, it's a MULTI-FACTOR device, it's not supposed to replace passwords (yet), hence the term MULTI-FACTOR, there are MULTIPLE FACTORS to your login procedure, the first one being your username and password, the second being this key.Secondly, it doesn't type out your password on screen, it types a cryptographically-calculated string which changes each time and is specific to the hardware key itself. The interaction of touching the device is in place to work with your chosen software when it prompts for a U2F device, where you need to press the key to activate it. This is to stop automated log ins when the key is connected, it requires a human to physically activate it. Pressing the key at any other time will output a meaningless code onto your computer, which means nothing to unconfigured software, so this is not a security risk.Thirdly, not all services support hardware keys yet. New hardware and software takes a VERY long time to be supported by all platforms and always starts with the biggest (Google, Microsoft, Amazon, Facebook, etc). You should check that the services you want to use this for actually support hardware keys.Lastly, this is supposed to be small. If you're complaining about it's size when there are other options available like the standard Yubikey 5 or Yubikey 5C, then that's your problem not the product's. This is supposed to be a static key that can be removed if necessary, such as for a personal laptop, and should be used in conjunction with another 2FA method as a fallback e.g. mobile authenticator app.This is a great product that does the job it's designed for. It's working well with Yubico Windows login software and a number of online accounts.

Works very well in a USB 2.0 port on my desktop. Very responsive when touched and easy to setup.

Google issued all their staff with this hardware key and it 100 % stopped phishing attacks among their staff. They make there own now called the Titan key (I think) This Yubikey is great and I have peace of mind knowing my accounts are secured with itI don’t understand some of the poor reviews, I can only imagine that some people may not know how to use it properly

It ideally (if not really) needs to be run on a (mains) powered USB 3.0 hub, otherwise it wouldn't (really) have enough power it requires in order to detect your finger (if not other things it does internally as well inside the nanochip, beneath the gold-colour-coated USB interface surface), bearing in mind that the YubiKey is a 'Nanocomputer' of its own.

Really quick and easy to use. Nice small size.

Never workes

The real thing unlike the cheaper copies. And it's evident in that there is no button to break (happened with my first FIDO key). Bit pricey but I guess you get what you pay for.

Perfect for the multiple services which require two-factor authentication these days. All the people who gave this a low score obviously have no clue how to use it.