Great concept but do your research before buying This review relates specifically to the Yubikey 5Ci and the iPhone 14pro using IOS 17.1 in the UK. The 5Ci key doesn’t not have the NFC facility (contactless connection) therefore it has to be inserted into the lightening port. However it will not connect unless the case is removed before insertion. I appreciate cases vary but mine is a standard apple purchased case. (Rim thickness 1 or 2 mm!) Quite frankly in my view the inability to use NFC or the lightening port without removing the case renders the key impractical. This is not made clear when purchasing the key. Even if this is acceptable to you it seems that most financial / bank apps in the UK do not support the concept of the key yet. If you are inclined to buy the key it’s worth checking before hand that the services you wish to use support the Yubikey I purchased them (you need two) through Amazon and was given a refund. Yubikey were helpful up to a point but their support links are complex and cover a multitude of keys and devices. The concept is good perhaps things will improve.

UK customers - Beware the artificially high shipping fee I placed an order with Yubico. They charged EUR15 for shipping. My order was delivered by Royal Mail Tracked 24 service. According to the Royal Mail website, this cost Yubico GBP3.30 for an 80g shipment weight as declared on the Royal Mail label. This means Yubico have charged an artificially inflated price for shipping (GBP3.30 is EUR3.75, which is substancially less than EUR15)

Ordered a product 17 days ago Ordered a product 17 days ago, put in an inquiry at the 2 week mark as to its whereabouts and still no updates. For a product thats advertised to arrive in 5 days. no updates/ apologies, its not really what you would expect. Feels more like a scam.

Just works After being recommended by a friend, who has a PhD in Ai field, I got 2 (YubiKey FIPS Series) for myself. One for use and another for back-up if things go south. It has given me great mental peace. The device is small, easy to carry and very efficient to use. I am happy to have them around and working on the security problem. Recommended.

I purchased 2 yubikey devices in May I purchased 2 yubikey devices in May, paid for express delivery, and still waiting for the devices to arrive at mine. I have tried to contact them via tweeter and emails but no headway so far