Card red is a word that rose a few years ago, meaning that card loopholes earn red envelope benefits. In fact, it is a bit similar to bonus hunter, but the card is mostly operated by using bugs in the system or platform. It is not recommended to do such a thing. It is better than bonus hunter.
Introduction:
The so-called bonus hunter refers to the net-earner who uses various online financial products or red envelopes to promote offline lottery tickets to make money, and also refers to the collection of preferential information of various banks and other financial institutions and various businesses, so as to achieve the purpose of profit.
This behavior is called bonus hunter. The definition of "bonus hunter" is not limited to the field of internet finance, but has penetrated into all fields of society. Many activities, such as take-away coupons, discounts, phone bills, traffic, etc. , you can call it bonus hunter.