CryptnoxFIDO Card - Fido2 Certified - Security Key for iPhone - NFC Communication - Passwordless or 2FA authentication - FIDO2 (CTAP2) & U2F(CTAP1) (Black)

Size and shape of a credit card. No identifying marks on the card to show what it is, although to an extent a completely blank card, does indicate it is a security key of some sort. I have put on a credit card sticker you can place on the front of cards to both personalise them and to anonymise the cards front.Setting up was simple and straight forward on an IOS device against the apple account. As with most apps or services you want to set this up for it is where the options for setting two factor authentication are. Once setup it works simply via the NFC reader and positioning the phone is the same as for Apply Pay or reading Smartcards (such as Oyster, Train Companies or Credit cards).This does support both FIDO2 (CTAP2) and U2F (CTAP1). Some banks and credit card companies may not support FIDO2 so having legacy support for U2F is useful.The one thing I hadn’t considered is that when you set up using a FIDO2 card, many services do not allow concurrent use of authenticator apps. I am concerned about what happens if I lose/misplace this card and will do more investigation before I fully switch over to using FIDO2 cards.

I’ve recently been getting a bit more into security and using authentication for a lot of my logics. It just seems to be the way the world is going. On my iPhone it uses certain apps and Face ID, which works well, but I wanted to see how this would work.Setting it up is surprisingly simple and then it just taps the back of the phone as a key. I’ve seen that it will work with a lot of NFT devices that can be used with computers and so on so this will work with those.I do like how simple it is and there’s no real indicator of what it does. It’s just looks like a payment card. For the cost it does as it says and it’s simple to use. I’m happy with it.

With the increasing acceptance of passkeys and other passwordless security methods for various services, security keys like this one offer a potential alternative to on-device solutions like fingerprint authentication. I recently tried out this security key from the Crypto company Cryptonox.The security key itself resembles any other credit card, except that it lacks any printed informationSetting up the security key is relatively straightforward on an iOS device once you’ve located the corresponding on-phone menus. While it’s not a major surprise given the lack of cross-device support, it would be beneficial to have such support. Most phones interact with the card using NFC, which reads it quickly. However, you may need an additional adapter or a built-in reader to use the chip or NFC on a laptop.Overall, if the security key works with your setup, it’s an excellent addition to enhancing your overall security. However, ensure that you have all the necessary components before initiating the setup process.

Very cool-I've been trying to improve my security recently, the this card has helped me do so. It's a very sleek card in plain white with nothing clearly identifying what it is, which is good. It does suggest it's a security key but nothing else besides that. I was quick and easy to setup on iOS and then I could use this as a way of two factor authentication on apps. It works via NFC so you just move it around near the back middle or back top of your phone to use it-Current price £26 for one card

Cryptnox FIDO Card - Fido2 Certified - Security Key - Price when reviewed £ 26.99Despite the description saying this card is compatible with Android, I cannot make it work. This is not helped by the absence of instructions from the manufacturer. The app seems to fail to register the card on my phone, but I'm unsure if it's the app, the card or user error.

With passkeys and other passwordless security methods being accepted for increasingly large numbers of services, security keys like this one are a potential good alternative to using on device solutions like fingerprint. I checked this one out from Crypto company Cryptonox.Set up first and this is relatively straightforward on an iOS device once you've found the on phone menus though I didn't manage to get it to work with Android - not a huge surprise given it's not promised but it would be useful to have cross device support. Most phones will interact with the card with NFC which reads it quickly though you will likely need another adapter or a built in reader to use the chip or NFC on a laptop. The card itself is similar to any other credit card though with nothing printed on it.Overall then if it works with your set up it's a great option to add to the overall security, however make sure you have everything you need before you get started.

I have just got this Cryptnox FIDO card as a 2FA security key to enhance my iPhone security. Out of the package, the key is really compact in as credit card so I can put it inside my wallet easily.The installation of the key is pretty easy and straightforward on my iPhone.iPhone's Settings/ Apple Account/ Sign-in & Security/ Security / Two-Factor Authentication/ Advance/ Security Keys Set up/ Add Security keys / Tap the Cryptnox FIDO card on the back of the iPhone/ Voila, now my iPhone now has advance security with the Cryptnox FIDO.On testing, the key reacts to login/unlock really quickly.Overall, I would like to recommend this FIDO card due to its great feature.

Great product, just what I was looking for. Excellent value for money.