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

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

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.

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.

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.

Never workes

I'm a technologist and consider myself far more technically capable than the average consumer. Before purchasing this, in my mind, I thought I could use it for everything and simply tap the button when logging into anything I wanted. This is but a dream that may never materialise because it requires various parties to standardise authentication flows and practices. I've listed a few use-cases below and how they work in the real world;WINDOWS 10 LOGIN - You can add several Yubikeys which is nice. You still have to type in your Windows username and password, if an enrolled Yubikey is not present in one of your USB ports, Windows 10 won't log you in (which is cool). However, it only works with local accounts, not domain accounts or Microsoft ID. So if you login to your laptop or PC with your Microsoft Account (email address) then you'll have to convert your account to local (which is actually really easy and it just means your wallpaper and stuff won't sync to other Windows 10 machines). Secondly, you'll need to install the Yubico Login Configuration tool to set this up.AMAZON SHOPPING/PRIME - You can add several Yubikeys which is great but you can't just login by having the key plugged into a USB port and touching the button. You still put in your credentials and then use the MFA code from the Yubico MFA app (which lists the codes associated with your key). So basically, I ditched the Microsoft Authenticator app, the Google Auth App and another one I was using, installed the Yubico auth app and enrolled MFA again for my critical apps and services.PAYPAL - You can only add one MFA method at a time and have Mobile SMS as a backup. So you have a choice, risk a single Yubikey and if you loose it, you're stuck. Or, use a weak mobile secondary text message service as a recovery option! - Bit pointless in my opinion!LINKEDIN - You can only have one MFA method - Again, single Yubikey and it's not a case of plugging it in/tapping it on your phone via NFC. You still have to enter your creds, unless auto-saved/populated by the app or device or browser and then copy the MFA code from the Yubico MFA app (desktop or mobile).FACEBOOK - The most accommodating and best experience, second only to Windows 10. You can several keys and it's just a touch to login. You must have an MFA auth app setup as a backup which can be anything, but as I was using the Yubico MFA app I just used that for FB too. You're not force to use a weaker mobile SMS as a backup/recovery option and you're not asked for creds all the time.RECOMMENDATION - Use in conjunction with a great credential manager like LastPass or KeePass - Thank me later!I hope that all makes sense, in summary it does add security but that comes with complexity. The amount of security you get depends on what website, app or service you are looking to integrate this with. I think these are over priced to be honest, you would get much better value from having LastPass + LastPass MFA app, having a different robo-generated password for each thing you use and ditching mobile recovery options and all other MFA apps, plus you can't miss-place a password keeper solution.IMPROVEMENTS NEEDED;1) Prompt, yes/no, allow/deny in the Yubico MFA app(s).2) Better integration and awareness with common third parties.3) Further simplification, although easy for me, my mum would give this 5 minutes of effort and throw it in the bin.

Really quick and easy to use. Nice small size.