Back in 1994-2004, I worked at the wireless phone company that eventually became AT&T wireless. I was an expert at the WAP protocols, and was often called in whenever any model cell phone was having trouble with our phone network, to figure out who was to blame (and it was nearly always a bug in the phones software, they just required proof).
Who could have known, back in 1999 when we released the first version of WAP, that an old WAP issue would re-appear in 2017? As soon as cellular networks were fast enough, we abandoned the WAP walled gardens, and used regular browsers and mobile websites. I seriously haven’t heard anyone refer to WAP since I left in 2004.
You can install ransomware on a Samsung Galaxy by sending it an SMS