New Words

combat  n.,vt. 战斗，格斗

extra  adj. 额外的，特大的

untraceable, practice, bounce 

majority  n. 多数，大半 minority

prepaid, authenticate

legitimate  adj.合法的，合理的 legitimacy

nuisance, fraudulent, resalable, reluctant, fraudster, click 

cautious  adj. 谨慎的，小心的 caution

scrutinize  vt. 细查，仔细审查

filter  vt.过滤 n.过滤器

refuse, utilize 

anonymous  adj. 匿名的 

careful, safeguard, cardholder, ascertain

Phrases

expose…to 使……受到，使……接触 explosion

turn away 把……打发走

for the sake of 为了……

insist on 坚持

positive list, negative list

speed up 加速

as soon as 一……就 (as long as, as well as)

issuing bank 发卡银行

open proxy 开放代理

Internet provides opportunity for merchants

However, with great opportunity comes great risk. 

ACNielsen: 59% payments are made by credit cards.

1. Accept only valid ISP email

2. Get a fixed line number – Both home and work

3. Manually reviewing orders

4. Keep a positive and negative lists

5. Be cautious on overnight shipping orders

6. Scrutinize the country of origin

7. Bank identification Number (BIN) check

  www.mars-soft.net/banksbase.htm

  all-nettolls.com/toolbox, http://www.cardcn.com/

8. Check anonymous and open proxy IP address

9. Card security code (CSC) & address verification services (AVS)