Websites offering cheap goods and services should be regarded with care.

　　Online shoppers who enter their credit­card information may never receive the goods they thought they bought. The thieves then go shopping with your card number—or sell the information over the Internet. Computer hackers(黑客) have broken down security systems, raising questions about the safety of cardholder's information. Several months ago, 25,000 customers of CD Universe, an online music retailer(零售商), were not lucky. Their names, addresses and credit­card numbers were posted on a website，after the retailer refused to pay $ 157,828 to get back the information.

　　Credit­card firms are now fighting against online fraud. Mastercard is working on plans for Web—only credit card, with a lower credit limit. The card could be used only for shopping online. However, there are a few simple steps you can take to keep from being cheated.

　　Ask about your credit­card firm's online rules: Under British law, cardhohlers have to pay the first $ 78 of any fraudulent spending.

　　And shop only at secure sites. Send your credit­card information only if the website offers advanced secure system.

　　If the security is in place, a letter will appear in the bottom right­hand

　　corner of your screen.

　　The

　　website address may also begin with https：//—the extra “s” stands for secure.

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