Scalpers are those who resell tickets for a large or quick profit. Scalpers often sell stolen or fake tickets. Nowadays, scalpers operate both offline and online. There is a greater number of scams happening online because it is usually illegal to scalp tickets at the event. Scalping bots buy up great numbers of tickets to later resell marked up. In 2016, the Better Online Tickets Sale Act was passed by Congress to curb this new form of mass resale. Online ticket marketplaces provide extra protection like refund policies in case the tickets you bought were actually fake.