✗ Use on non-Windows platforms can be difficult ✗ Expensive for those who don't need the added features ✗ Doesn't have support for more advanced protocols ✓ IP67-rated and with no moving parts makes it very sturdy ✓ Protocol support for WebAuthn, CTAP 1, CTAP 2, U2F ✓ Has FIDO U2F and FIDO 2 which is used by most of the big names

✓ Affordable yet still has all the security features most people will need If you want open-source, you can't do much better than this. It's an excellent security key if you need the extra layer of protection.Ī brilliant, open-source hardware security key which offers a wide range of security options, advanced features and remote access through NFC. The OnlyKey is unique in that it can handle three-factor authentication completely internally through its onboard password manager. The VeriMark offers the best balance of protocol support, cost, and most importantly, fingerprint scanning that works from nearly any angle. The YubiKey 5 provides the most comprehensive protocols of any security key out there, as well as some excellent additional features for those who are security conscious. The Yubico exchanges wider protocol support for a lower price and considering that the included protocols are used by most sites, software, and services, that's a good trade-off for this excellent security key.

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