• Wikipedia
  • Multi-factor authentication
  • Universal 2nd Factor
  • Authenticator
  • Google Authenticator
  • Single sign-on
• How to use the Microsoft Authenticator app
  • With this free app, you can sign in to your personal or work/school Microsoft account without using a password. You’ll use a fingerprint, face recognition, or a PIN for security.
• Authy | Two-factor Authentication (2FA) App & Guides
  • Authy vs. Google Authenticator
• freeCodeCamp.org / How to Set Up Social Authentication with Strapi and Nuxt.js

Identity and access management (IAM)

• Wikipedia
  • Amazon Cognito, a user identity service by Amazon Web Services (AWS)
  • Okta, Inc.
  • Keycloak
• GitHub
  • Auth0
  • ory/kratos: cloud native Identity and User Management System

AI

• A look at CloudFlare’s AI-coded OAuth library by Neil Madden
  • Хабр / Проверяем написанную LLM библиотеку OAuth на уязвимости