The Authy Java SDK by Authy allows API communication to access authentication data. Resources include dependencies and compilation. Usage demonstrates how to register a user, verify a user, request an SMS token, and verify via phone call.
Google recently announced an expansion to its GPSRP program (a bug bounty program for Google Play apps). Additionally, the company introduced the new Developer Data Protection Reward Program (DDPRP) to help uncover and stop data abuse across Android apps, OAuth projects, and Chrome extensions.
Authentication vulnerabilities are at the center of security issues faced by two of the web's biggest companies this week. A German security firm showed that Google's Android platform sends some authentication tokens as plain text. Similarly, Facebook is requiring many developers to update their apps to fix a problem with "leaking auth tokens" due to iframe authentication.