Users of Samsung's Messages app are facing a weird issue. Several of them have confirmed their entire galleries of photos has been sent to a random contact, and the scary part is the whole process happened without leaving a trace (meaning the sent photos didn't show up at their end). So... S9s have been sporadically sending the entire contents of one's gallery to a contact via SMS, and it doesn't show up on your side. Might be worth checking logs on your carrier's site, because it happened on my T-Mobile Note8 Last night around 2:30 am, my phone sent her my entire photo gallery over...
Source: https://www.gsmarena.com/samsung_messages_bug_results_in_entire_gallery_of_users_photos_being_shared_without_permission-news-31924.php
