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Chapter 5. Securing Your Home Network > Setting Up Security Zones in Internet E...

Setting Up Security Zones in Internet Explorer

While you surf the Web, your Web browser is constantly downloading files. Although the vast majority of these files are harmless, occasionally your computer may run across a malicious program. Fortunately, if Internet Explorer is your Web browser, you have a built-in security mechanism for reducing the risk of downloading malicious programs.

Internet Explorer categorizes Internet content into security zones, and each zone is assigned an appropriate level of security. The two general zones with preset security settings are Internet and Local Intranet. The Internet zone applies to content that originates from outside your network, while Local Intranet covers content that originates from within. The default security settings for the Internet zone are much stricter than for the Local Intranet zone. Depending on the specific settings for the zone, Internet Explorer allows files to be downloaded, warns you of the dangers before downloading them, or blocks the files entirely. The two other zones, Trusted Sites and Restricted Sites, allow you to customize Internet Explorer by defining which Web sites you consider to be safe and which you do not.


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