Yubico - Security Key C NFC - Basic Compatibility - Multi-Factor authentication (MFA) Security Key, Connect via USB-C or NFC, FIDO Certified

These work perfectly fine. Can be inserted into an iPhone, Mac, PC, iPad and Android phone. NFC works perfectly. Durable, but costly for what it is. The biggest problem I have is that the devices themselves make it very hard to select a physical key for authentication. The mac as an example wants to use its own vault. Its just a pita but it isn't the fault of Yubi.

Why did you pick this product vs others?:I've been working from home the past couple of years, and the company I work for recently started requiring stronger security for logging in and out of systems. I picked the Yubico Security Key (the usb version). Honestly, I'm impressed. Setup was super quick. I plugged it in, followed a few steps on my work accounts, and that was it. No extra software or anything complicated. The best part is knowing my accounts are protected even if someone somehow gets my password. You physically need this key to log in, which gives me peace of mind. Save yourself the hassle and just buy it.

There are other more exquisite models of Yubikeys (eg. Yubikey 5, Yubikey FIPS) along with different sizes of each model, however this basic Yubikey (Model) Security is all most people will ever need.The "Yubikey Security" includes basic FIDO/WebAuth, for verifying your identity with many popular Internet sites when using Two Factor Authentication (2FA).The "Yubikey 5" is more so for those (likely tech savy guys) using PGP/GNUPG on a daily basis, such as signing Emails or source code commits. Includes OpenPGP (GNUPG) and SSH key support, as well as some other exquisite authentication methods. Most documentation workflows mandate destructively moving/copying the keys to your (USB) security device token (Yubikey 5), with PGP/SSH keys are primarily contained on the security device token with only stub key files remaining on the computer. If you're a user simplifying your security routine rather than complicating your security workflow, probably not wise with the existing paranoid coded tools or workflow!The "Yubikey FIPS" is likely only for actively employed Government employees requiring Federal Information Processing standards (FIPS). Certainly, as of this date July 2024, does not include civilians logging into the basic Federal Internet sites for receiving benefits; and likely will never include civilians. FIDO/WebAuth is primarily used with external security device tokens, such as Yubikey. FIPS likely requires key extraction/copying from official Government keys, and likely requires the assistance of the system's administrator... a task not for the "faint of heart", even for seasons computer programmers.YUBIKEY SECURITYPROS1) It is a larger key, unlike the nano sized USB keys, so users can visibly see their key is still attached and can remove the key when not in use.2) Basic FIDO/FIDO2/WebAuth security, can greatly simplify most Internet sites using pain in the butt Two Factor Authentication. (eg. Google, ...)3) More feasible $20-25 each, rather than greater than $50 for each for more exquisite Yubikey 5 models.4) Key is in a form factor much smaller than the credit card sized security device tokens.CONS1) If kicked, knocked or dropped, the larger keys can likely break or break USB ports.2) Most banks still do not make use of external security device tokens (eg. FIDO2, WebAuth, ...), such as the Yubikey Security USB key.3) Only one form factor, large basic and very visible. (eg. No nano sized USB keys for Yubikey Security.)

I bought this so I could add a security key to my accounts that was supported by my new iPad. I did not do my research well enough as I thought this was the same as my Yubikey 5 I've purchased in the past but with a different connector on it. It does not support the 2 factor authentication slots like my previous keys as this is strictly a FIDO security key. After I received them and realized they were missing the functionality I was expecting, I saw that they were advertised exactly as they came, but I just didn't realize at the time. I should have realized because they were much cheaper than ones I've bought in the past. As a FIDO key, these work fine and I have had no issues with them.

Works well and it’s easy to use. Needed this for work and it does the job to connect to platforms that require additional security.