Not just that, random folks can send you media through multiple ways & you could get embroiled unnecessarily too, innocuous QR code might automatically download an image if your apps are configured that way.
>innocuous QR code might automatically download an image
Just a few days ago at DEF CON some presenter had been going around with the EICAR test string in a QR code and having fun with all the forced AV hits that can cause.
