I have a basic Yubikey (USB only) that I got from having an Ars Technica subscription. Right now I have that + Authy so that none of the critical services are Y

I have a basic Yubikey (USB only) that I got from having an Ars Technica subscription. Right now I have that + Authy so that none of the critical services are Yubikey-only. If I get the new Yubikey, my plan is to put the old one in a safe as a backup.