A friend of mine, also a VzW customer, received what appeared to be a text message from me overnight, at a time when I was sleeping. He replied to me around 3:45am. After I explained to him that I didn't send the original message, he sent me a screenshot of our SMS thread and his thread shows the errant message received.
We are both very concerned about what's going on here including possible security considerations.
What's the best way to get assistance with this situation?