A back-to-school event took an unexpected turn when it became a warning about online dangers. Homeland Security Investigations and a survivor of trafficking spoke to families about the risks associated with apps and cellphones. This warning came after a teenager disappeared following an online encounter with a man.

The event highlighted the importance of monitoring children's online activities to prevent such incidents. Details about the missing teenager and the online safety warning are available from the source.

Further information about the event and the online safety concerns can be found through the original report, which provides more context about the situation and the warnings issued by Homeland Security Investigations and the trafficking survivor.