I had never gotten a spam text, and only a handful of spam calls, until a couple of months ago. Then, it was like a switch had been flipped -- all of a sudden,

I had never gotten a spam text, and only a handful of spam calls, until a couple of months ago. Then, it was like a switch had been flipped -- all of a sudden, I started getting multiple calls a day, every day. I started getting spam texts every few days. I ended up installing and starting to use TMobile's Scam Shield app (on iOS), which uses some algorithm/data to block suspected spam calls before they get to your phone, and that's basically solved the call problem (it seems to do a good job, and hasn't yet blocked any legitimate calls. On the other hand, I don't get a lot of legitimate calls from random numbers in general, so I'm probably not a representative sample). I started forwarding any spam texts to 7726, and that at least seems to have slowed down that aspect as well, though I still get them once in a while. Recently, I received a few spam iMessage group texts, with ~18 numbers in a group. It's happened 4 times over the past month, and each time I've blocked every number on that list. I presume that iMessage spam is some cutting-edge development and will only get worse as more spammers figure it out.