How are sex traffickers able to sell children?

I hear of five and six figure prices on the bodies of children kidnapped and sold on the black market into domestic servitude and sexual slavery. Are they auctioned over extremely secure, encrypted websites? Do sex industry heads such as club owners and pornographers act as go-betweens for seller and potential client? This would obviously have to take place within a very tight community under high security. Does anyone have any information on this?How are sex traffickers able to sell children?It's simple economics. You've got something to sell? There's a buyer for it. The only thing to agree on is the price. That applies to everything.How are sex traffickers able to sell children?no man.... the people who can afford child slaves don't use internet. Doing anything on the internet no matter how encrypted you may think it may be will always lead back to a paper trail.How are sex traffickers able to sell children?..why do you need to know this????