Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Spring Security - The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...
Duo Security - Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
JSON Web Token - JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.