Hello. I own both an old Yubikey Standard and a newer Security Key Series by Yubico. I am wondering which is the most secure method of cryptology as both products list in total six methods. They are: - FIDO U2F - FIDO 2 - Yubico OTP - HMAC-SHA1 Challenge Response - Static Password - OATH-HOTP Well, I clearly know that static password is the worst, but I am not so sure of the others as they all have cryptological weaknesses. Any help?