Does anyone know if the protected notes are actually encrypted? Has anyone checked to see if they use to secure notes inside of keychain? Not running the beta yet, but curious.
Are secure notes encrypted?
According to https://www.apple.com/business/docs/iOS_Security_Guide.pdf, the user partition is encrypted.
Note the security diagram that locates the Data Protection class inside Sandbox, which is inside User Partition.
And states:
"Data Protection in apps
The iOS Software Development Kit (SDK) offers a full suite of APIs that make it easy for third-party and in-house developers to adopt Data Protection and help ensure the highest level of protection in their apps. Data Protection is available for file and database APIs, including NSFileManager, CoreData, NSData, and SQLite.
The Mail app (including attachments), managed books, Safari bookmarks, app launch images, and location data are also stored encrypted with keys protected by the user’s passcode on their device. Calendar (excluding attachments), Contacts, Reminders, Notes, Messages, and Photos implement Protected Until First User Authentication."