Instead of trying to.... I think some of this asking the youths to just give up their phone or to stay off the Internet comes from wanting to protect them, but I think part of this is about how they're going to receive these messages, so sit down with them and show them that these messages aren't correct. Show them that they're not right about them, that they're not the only ones sharing nudes, and that the guy is kind of the bad person here for sharing it.
As Lisa said, I think we really need to invest in research, evidence-based, but we really need to not be afraid to look at it head-on instead of trying to protect them from it ever happening. It's going to happen—because we don't fully understand why it happens—so sit with the youth, look at the messages, and just let them know that those messages aren't true.