In recent years, we see a lot of news about online cheating, and many buyers complain about poor quality of the goods, which is different with the description.

近年来，我们看到很多关于网购欺骗的新闻，以及很多买家抱怨商品的质量很差，跟网上描述的不相同。

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There are hundreds of cheating tools used in online gaming and dozens of cheating programs tailored for popular games.

现在用于网络游戏的作弊工具就有几百个，特为时下流行的游戏而设计的外挂程序也有很多。

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Be clear on the rules. Will calls and emails for work be allowed? What about going online for homework? What are the consequences for cheating?

明确规则。工作上的电话和电子邮件是否允许？为做家庭作业而上网是否可以？还有，耍赖搞小动作的后果是什么？

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In another MOOC she took run by a University of Pennsylvania professor, a half-dozen teaching assistants shepherded student discussion online and cheating was much less pervasive, she said.

WSJ: Web Classes Grapple With Stopping Cheats

Cathy Cheal, senior academic technology officer at San Jose State University in California, which recently accepted several MOOCs for credit, said the key to avoiding cheating online is to structure courses so students are constantly engaged and have to answer questions every few minutes.

WSJ: Web Classes Grapple With Stopping Cheats

Another technique is to encourage customers to police suppliers: eBay, an online marketplace, hugely reduced cheating by getting buyers to rank sellers.

ECONOMIST: Schumpeter