Re:A bug in Samsung’s default texting app is sending random ...
by breakingcups on Tuesday July 03, 2018 @05:19AM
(#17448648)
That doesn't explain the case where all photos on the phone were silently sent to a contact.
That may be the case but the bug could still be on the server side:
Unless you encrypt the data to your recipient's client-side held key, the opportunity for the server to err and data leak, persists.