When sending attachments I cannot be sure that they will stay private. E.g. when sending a photo of myself I don't want it to be forwarded to another person..
You can never be sure, no one is stopping your contacts from building Signal-Android themselves, and removing such a restriction.
Similar discussion in #5757.
Yes, I understand and totally agree that it will never be 100% secure and it will be possible to save the attachment in some way. However as long as you keep this in mind (maybe add a hint) it would be fine in my opinion. It should just be more difficult to do so..
GitHub Issue Cleanup:
See #7598 for more information.
Most helpful comment
You can never be sure, no one is stopping your contacts from building Signal-Android themselves, and removing such a restriction.