Hi everyone, my first post. I was browsing on my iphone 4 and suddenly the screen became black, and it said in a blue writing "your iphone sent a text", this screen stayed for 5 seconds and then disappeared. I went to chek my messages, and the first text was from me or by me, at least it was my name and when I entered the message, there were no messages... Has anyone got an idea of what's happening ? Is my iphone hacked ? Thanks for the help.