• Swift at Apple: Migrating the Password Monitoring service from Java Swift is heavily used in production for building cloud services at Apple, with incredible results. • Last year, the Password Monitoring service was rewritten in Swift, handling multiple billions of requests per day from devices all over the world. • In comparison with the previous Java service, the updated backend delivers a 40% increase in performance, along with improved scalability, security, and availability. • The Passwords app, introduced in the fall of 2024, helps users manage their passwords, passkeys, and verification codes. • It allows them to store, autofill, and generate strong passwords that can be shared across all their devices, as well as share passwords with trusted contacts. • One security feature included in the app is Password Monitoring, which warns users if one of their saved passwords shows up in a data leak.
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