Video: Lost your car keys? Soon, your smartphone will unlock your vehicle.

Some Galaxy owners are a tad freaked out after discovering the Samsung Messages app sent dozens of photos from their phone to certain contacts all by itself and without asking permission.

The weird bug was reported by affected Galaxy owners last week on Reddit[1] and Samsung's user forum. Since Samsung Messages is the default messaging app on all Galaxy phones, it also affects some owners of the Galaxy Note 8 and Galaxy S9.

One Galaxy S9 Plus owner said on Reddit[2] that last week at about 2.30am the Samsung app sent his entire photo gallery to his girlfriend over text message, yet there was no record of the messages in the sent folder.

However, the unauthorized messages did show up in logs maintained by his US carrier, T-Mobile.

Exactly why it's happening isn't certain yet, but there is a theory that it has something to do with a report from a T-Mobile subscriber with a Galaxy S9 on Samsung's user forum who complained that Samsung Messages has become very buggy after T-Mobile's recent upgrade[3] of Rich Communications Services (RCS), the chat-enabled replacement to SMS that Google and some carriers are pushing[4].

T-Mobile rolled out the RCS Universal Profile update last week[5] but that was for the Samsung Galaxy S7 and S7 Edge.

However, the report on Samsung's forum only concerned scheduled messages being sent at the incorrect time to the wrong message threads.

Whatever the cause, the forwarded photos have the potential to become a disaster, depending on what the pics are of and who receives

Read more from our friends at ZDNet