BERLIN—German prosecutors announced Monday they have busted one of the world’s biggest international darknet platforms for child pornography, used by more than 400,000 registered members. Frankfurt prosecutors said in a statement together with the Federal Criminal Police Office that in mid-April three German suspects, said to be the administrators of the “Boystown” platform, were arrested along with a German user. One of the three main suspects was arrested in Paraguay. They also searched seven buildings in connection with the porn ring in mid-April in Germany. The authorities said the platform was “one of the world’s biggest child pornography darknet platforms” and had been active at least since 2019. Pedophiles used it to exchange and watch pornography of children and toddlers, most of them boys, from all over the world. Prosecutors wrote that they found “images of most severe sexual abuse of toddlers” among the photos and video material. “The platform …