High-risk merchant accounts are a type of business account offered to companies that have a higher risk of chargebacks and fraud. These businesses tend to be more complex than traditional merchants, which means their products or services require more attention and scrutiny for them to be processed properly. High-risk merchants can accept credit cards and debit cards from customers who want to make purchases online, by phone, or by mail; however, their products are often considered high-risk because they may involve large amounts of money or require extensive personal information from buyers.