Yubico - Security Key - Black - Two-Factor authentication (2FA) Security Key, Connect via USB or NFC, FIDO U2F/FIDO2 Certified (USB-A NFC)

They seem good quality and have been a good solution so far. It works well as both a hardware key and security key protected via a pin and physical presence. Ideally if you want to get rid of other authentication methods you. Need two incase you loose one. It's a shame there isn't a discounted 2 pack.

Bought a couple of these to secure my iCloud account. It was very simple to set up and works perfectly either by plugging in or using NFC. If you don't need all the added features and just want a hardware key to properly secure your iCloud or Google account etc, these are perfect

The setup was a bit complicated and difficult to understand. After setup using it is as easy as picking up a USB. It doesn't have any storage. Use of it allows me to log into my millions of accounts securely. It works with all types of USB, except USB C which requires an adaptor. The durability feels tough, dropping it definitely wouldn't break it.

Great little bit of tech for keeping your accounts safe especially as a backup incase you lose your phone! Used to keep Microsoft and Gmail safe so far. Also connected to my iPhone 13 incase i need to log in from there. You can connect and enable NFC by going into shortcuts and adding new automation where you will find NFC. Very easy to set up.

Does what it claims to do perfectly, but the moment it's only usable on a relatively limited number of sites, so I'm not convinced that it offers significant advantages over using a PIN.

Works OK.

Bought this thinking it was a proper YubiKey with NFC that could store and display 2FA codes (Google, Proton, Microsoft etc.) in the Yubico Authenticator app on my iPhone, exactly like the more expensive YubiKey 5 NFC does. It is NOT. Despite the listing proudly saying “Near-Field Communication (NFC)” and “Multi-factor authentication (MFA) security key”, this black “Security Key NFC” is a FIDO2/U2F-only device. It has zero support for OATH/TOTP (the standard used for time-based 2FA codes). When you tap it on an iPhone or Android phone, the official Yubico Authenticator app either does nothing or throws “no privileges” / “YubiKey does not support OATH”. You cannot add accounts, you cannot see any codes, you cannot use it as a hardware authenticator app replacement. Full stop. Yubico themselves confirm this on their website (only the YubiKey 5 series supports TOTP over NFC), but Amazon’s listing never mentions the limitation. The word “passkey” is buried in the description and most buyers won’t know that means FIDO-only. Result: hundreds of people (check the 1-star reviews and Reddit) buy this £26 key expecting full functionality and end up with a door-stop for anything except FIDO logins. It works fine for passwordless logins on Google, Proton, Microsoft etc. (that part of NFC is good), but if you want a hardware key that replaces Google Authenticator / Authy and lets you tap for codes, this is the wrong product. You need the YubiKey 5 NFC or 5C NFC instead (roughly twice the price for a reason). Extremely misleading advertising from Amazon and poor product differentiation from Yubico. Returning mine. Save yourself the hassle and the return postage – spend the extra £25–30 and get the real YubiKey 5 NFC if you want TOTP support. Hope this review stops someone else wasting their money.

With passkeys now becoming the way forward for account authentication, it's great to be able to create a backup for important accounts without relying on a PC or Phone, or handing over to Google etc. to replicate them. They are small and easy to use and also useful to act as an off-site backup in case of emergency loss of everything. The only downside I suppose is you really ought to have at least 2 of these and keep them both up to date. But at least they are not TOO expensive.

Excelente, funcionando conforme o esperado

YubiKeys are a must at every tech company I've worked for. They offer the highest level of security and are incredibly easy to set up. I’ve used them for over eight years, and they’ve saved me from multiple phishing attempts. If you see negative reviews, ignore them—it’s usually just a lack of technical know-how. Take the time to learn the system; the security payoff is worth it.

La verdad es un excelente producto para mejorar la seguridad, se activa conectando la USB a un puerto, pero importante mencionar que la PC no reconoce como un dispositivo USB. Una vez que se activa solo podrá configurarse al momento de activar la seguridad en 2 pasos ya sea por NFC o USB, pero si pasan la llave por algún lector NFC o la conectan, el dispositivo no la reconoce inmediatamente, solo lo hace al momento de configurar el 2FA. Me imagino que por eso algunos usuarios comentan que no les sirvió. Tengo una Yubico 5 y esa si se reconoce como USB aunque no la estes usando para configurar en ese momento.

PRODOTTO FUNZIONALE E MOLTO SEMPLICE IL FUNZIONAMENTO LO CONSIGLIO FUNZIONA BENE

works fine, but thus far I can only use it on Amazon ... Google in their infinite widsom require purchasing 2 security keys so there is a back up which is VERY irritating ... otherwise, Australian banks and financial institutions are typically WAAAAY behind the rest of the world.