Photographers and other men offer to build online followings for young girls, but some are pedophiles who work with parents to sexualize them.

Victims of abuse are seeking more than $1.2 billion in damages, arguing that the company abandoned a 2021 system it developed to find abusive material.

© Sara Naomi Lewkowicz for The New York Times

Victims of abuse are seeking more than $1.2 billion in damages, arguing that the company abandoned a 2021 system it developed to find abusive material.

© Sara Naomi Lewkowicz for The New York Times

Smartphone apps downloaded from Apple and Google can allow parents and other abusers to connect with pedophiles who pay to watch — and direct — criminal behavior.

© Jeenah Moon for The New York Times