There are few main ways for authentication used by Apple. Below are they:

Apple’s Touch ID: The measures of the security being used by Apple are improving day by day for the users now. It is only getting better with time now. Apple is trying to maintain a balance between the technology as well as convenience of the users. With the launch of the iOS 10, Apple is one step more close to creating the intermesh of the authentication which shall hopefully improve the security protocols for the users of the Apple devices.

The X Factor: Today most of the devices are relying on the authentication via multi-factor in their device. This means that user will have to prove their identity using multiple information pieces. Apple has implemented the Touch ID now in their iPhones for implementing the authentication of the users. Apple is also additionally ending a security code for the verification once the purchase is being initiated on the device. This additional two factor authentication on the device of the Apple has further improved upon the security for the Apple users. If any fraud transaction is initiated, the user is alerted.

Fingerprints: Apple reads the fingerprints of the users to authenticate them. It is a very common practice for them to read the user’s identity via the touch id of the system. Apple does not practically stores the information about the fingerprints however they are only keeping the measurements of the complex fingerprints. This helps the system to quickly identity the real user and unlocks the screen for them. Apple is firmly using the touch ids now everywhere. It is rumored that sooner Apple will be using the touch id and the fingerprint of the users for authenticating the payment on the Apple pay electronic pay services.