Two-factor authentication for your URIports account
Token2, Token2 T2F2-PIN+/TypeC FIDO2, U2F and TOTP Security Key with PIN complexity feature, TOKEN2 MFA Products and Services
Database.com Chatter REST API Developer's Guide - Salesforce.com
How to set up the Two-Step Authorization (Google Authenticator). – Gaijin Support
FIDO Authentication with WebAuthn
Migrating from U2F
Setting Up Authentication Methods - Commonwealth Office of Technology (Kentucky)
How To Setup TOTP Authenticator for 2-Factor Authentication (Complete Guide), by Nitin Sharma, BinaryBoot Blog
Using Kerberos for Authentication Relay Attacks - vulnerability database
Two authenticators
How do I set up the two-factor authentication (2FA) method?
Types of two-factor authentication, pros and cons: SMS, authenticator apps, YubiKey
Two authenticators
Client to Authenticator Protocol (CTAP)