Naven
Sextortion is blackmail with intimate images. Somebody obtains a sexual picture or video — often by pretending to be a peer and sending one first — and then threatens to share it with the victim's friends, family or school unless they pay money or send more images. Teenagers, and teenage boys in particular, are frequent targets of the version that demands money.
What to do: stop replying, do not pay or send anything more, keep the messages and the account name as evidence, block and report the account, and tell an adult you trust. In the United States, the National Center for Missing & Exploited Children runs the CyberTipline (report.cybertip.org) and Take It Down (takeitdown.ncmec.org), which helps remove intimate images of people who were under 18 from participating platforms.
Where Naven stands
Sexual exploitation or abuse is one of the twelve categories Naven screens for before a message is delivered, and anything sexual involving a minor suspends an account on the first instance. Pictures are examined by an image model, but that check is newer and weaker than the text screen and must not be relied on. Every conversation's menu has Block and Report.
