You’re concerned about your phone keeping data on your phone, that it derived from data on your phone? At that point I think you are so far outside of the norm as to be considered a fringe use case.
So what if he is?
Apple has three trillion dollars. It can put in a "Turn all off" button.
For our lifetimes? Yes.
By violating the application sandbox!!!
Some E2EE messenger apps have "data at rest" encryption of local messages. How is Apple protecting the spidered app data?
Dec 2024, https://www.nbcnews.com/tech/security/us-officials-urge-amer...
> Amid an unprecedented cyberattack on telecommunications companies such as AT&T and Verizon, U.S. officials have recommended that Americans use encrypted messaging apps to ensure their communications stay hidden from foreign hackers. The hacking campaign, nicknamed Salt Typhoon by Microsoft, is one of the largest intelligence compromises in U.S. history, and it has not yet been fully remediated.
1. "Learn from this app", uses NSUserActivity API: https://developer.apple.com/library/archive/documentation/Ge...
2. "Show content in Search", uses Apple Spotlight to index all app data. For an E2EE messenger, that is not only notifications, but all text/image/audio data in message history.
As stated at the top of this subthread, these menu options preceded Apple Intelligence by several years. Implementation would have changed over time.