A cloned card is a copy of a real card. There is a card owner, he has a card with some balance in his bank account. This could be a credit card with a certain limit. Using special programs and equipment, a copy of his card is made with the same details and PIN code.
Those who are just starting to engage in cloning do not make many such copies and are engaged in cashing out money themselves. But there are organizations that already have a whole team of employees and can make a lot of copies per month. Cashing out all cards becomes difficult and unsafe. You need to look for people in different countries and regions who would agree to withdraw cash. These people have to pay, and there is also a risk of deception, and this happens quite often. As a result, the easiest way to scale this type of earnings is to sell all cloned cards that exceed the safe withdrawal amount.