>> reporter: during the pandemic when selena's school and social life moved online, she was regularly messaging with people on these apps. some she knew, some she did not. >> there were adults that would reach out, which i was not aware of until not too long ago. men. they knew she was a minor. >> cnn's audi cornish joins me now. would you have been speaking with these families, getting a sense of really what this battle is like. it's really almost like a david and goliath type of situation. huge tech companies and individual families struggling with how this technology that i'm sure some of them don't even fully understand affects their children's lives? >> right. right now the law is not exactly on their side. section 230 of the communications decency act says that online companies can't be