Product details:

Touch ID, Your fingerprint is your password The advanced security and convenience of Touch ID are now built right into MacBook Air. Simply place your finger on the Touch ID sensor and just like that your Mac unlocks. Use your fingerprint to immediately access locked documents, notes, and system settings, without entering yet another password. Online shopping is even easier select Apple Pay at checkout, and with just one touch you're done. With Touch ID, your private information stays private. Apple T2 Security Chip MacBook Air features the Apple T2 Security Chip second-generation custom Mac silicon designed by Apple to make MacBook Air even more secure. So when you use Touch ID to unlock your Mac, authenticate a document, or pay a merchant online, your information stays safe. With on-the-fly data encryption, all your data stored on the SSD is automatically and fully encrypted.