<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">I apologize in advance if this has been discussed before, but I don\u2019t recall seeing it.<div><br></div><div>I already have Okta installed on my Mac, but wouldn\u2019t mind another 2FA as a backup, and am thinking about a FIDO2 key, particularly one that is USB-C and that is compatible with Mac (and supported by <a href="http://USPTO.gov">USPTO.gov</a> of course).</div><div><br></div><div>I was looking at the YubiKey 5C or the YubiKey 5C NFC\u2026 does anyone have any experience with either of these keys with <a href="http://USPTO.gov">USPTO.gov</a> and a Mac? Or any other brand?</div><div><br></div><div>Thanks!</div><div><br></div><div> - Mike Dryja.</div><div><br></div><div><br></div></body></html>