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Chapter 19. The Savvy Surfer: More Inter... > Caveat Surfer: Internet Explorer and... - Pg. 226

The Savvy Surfer: More Internet Explorer Fun 226 · If you don't want to bother with the component, click Cancel. (If you never want Internet Explorer to bug you about this component again, be sure to activate the Never download any of these components check box before you click Cancel.) Figure 19.3. Internet Explorer displays this dialog box if it needs to install a component to render a page properly. Caveat Surfer: Internet Explorer and Security Tons of people are flocking to the Web, and tons of content providers are waiting for them there. Still, the Web is by no means in the mainstream. That is, although millions of people surf the Web, that's still only a small percentage of the hundreds of millions of potential Web denizens that remain resolutely unwired. There are many reasons for this, but one of the biggest is the security issue. There are two issues, actually: · Protecting the data that you send to the Web--Many Web page forms ask you to supply sensitive data, such as your credit card number. You wouldn't leave credit card receipts lying in the street, but that's more or less what you're doing if you submit a normal Web form that has your Visa number on it. The solution here is to only enter sensitive data on Web pages that are secure (more on this in a sec). · Being protected from the data that the Web sends to you--The nature of the Web means that all kinds of items--text, graphics, sounds, Java applets (a kind of mini-program), ActiveX con- trols (another mini-program), and more--get deposited on your computer, at least temporarily. How do you know all that stuff is safe? And if you're not sure about something, how do you refuse delivery? Internet Explorer offers quite a number of features that tackle these issues directly. For example, the Internet Explorer window gives you visual cues that tell you whether a particular document is secure. For example, Figure 19.4 shows Internet Explorer displaying a secure Web page. Notice how a lock icon appears in the lower-right corner, and that the address of a secure page uses https up front rather than http. Both of these features tell you that the Web page has a security certificate that passed muster with Internet Explorer.