iOS 17 Adds New Features for Managing Two-Factor Authentication Codes

iOS 17 can automatically delete used 2FA codes from Messages after use. Enable in Settings.
2FA codes auto-fill like passwords with iCloud Keychain since iOS 15. No need to open another app.
For more security, use non-SMS 2FA methods when possible like auth apps.
See recently deleted codes in Messages by tapping Edit > Show Recently Deleted.
iOS 17 also brings shared iCloud Keychain passwords between family members.

9to5mac.com

Relevant topic timeline:

9/15/2023

Apple Unveils 5 New iOS 17 Privacy Features: Face ID for Safari, Tracking Prevention, Auto-Deleting Codes, Photo Permissions, and Automatic Check-In

Apple has announced that iOS 17 will be released on September 18, and it will come with several important security and privacy features such as locking private windows in Safari with Face ID, better tracking prevention, auto-deleting verification codes, new photos privacy permissions, and automatic check-in texts in Messages.

9/18/2023

What's New in iOS 17: Customizable Lock Screens, Sleep Tracking, Crash Detection and More

iOS 17 brings new features and enhancements, and this article provides information on what to expect and how to use them.

9/19/2023

5 Ways to Adjust iOS Settings for More Privacy and Control

iOS 17 introduces new features and settings, but not all may be loved by users, and fortunately, there are ways to disable them if desired.

10/6/2023

iOS 17 Messages Gets Transcriptions, Improved Search, and Location Sharing Updates

Apple's iOS 17 introduces new features in Messages, including automatic transcription of audio messages, Check In to share estimated arrival times, multiple filters for searching, grouped apps, easier navigation and replies, improved location sharing, and automatic deletion of verification codes.