Touch ID

As part of its raft of new APIs for developers, Apple today introduced new APIs for its fingerprint-based Touch ID system at WWDC. And the big news is that third-party apps will finally be able to use Touch ID authentication in iOS 8.

According to today's presentation, the system protects logins and user data, and works with iOS's existing keychain setup. And as ever, biometric data from your fingerprints is kept securely silo'd away on the device.