ThinSSO is a federated single sign-on solution that allows users to access multiple business applications with a single set of credentials. It uses front-end web applications and Java implementations of authentication protocols to securely pass authentication information to applications. Supported applications include Salesforce, Oracle CRM, Google Apps, and custom applications that support Security Assertion Markup Language. ThinSSO provides features like zero sign-on, support for both Kerberos and NTLM, and the ability to map source usernames to target applications.