a dishonest or illegal activity in which a seller sends something, often a product of low value, to a customer who has not asked or paid for it, then uses that customer's name to write good reviews of the seller's products on the internet

A brushing scam starts with unordered packages arriving in the mail. 刷单诈骗发生时，顾客会先收到未订购的邮寄包裹。

Brushing is illegal or of dubious legality in many countries, but only a handful of firms get caught. 在许多国家，刷单是非法或涉嫌违法的行为，但是只有少数商家被定罪。