The carriers are already blocking messages that match this pattern. That's why you haven't seen widespread exploitation. https://twitter.com/jcase/status/62832

The carriers are already blocking messages that match this pattern. That's why you haven't seen widespread exploitation. https://twitter.com/jcase/status/628327791713517570 https://twitter.com/jcase/status/628327791713517570 However, this only works in the US when you have 6 carriers. I have no idea what the situation is like elsewhere with massive carrier fragmentation.