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Improve Internet Security
All Web sites you visit initially use the security and privacy settings defined for
the "Internet Zone". Web sites/addresses you add to either the "Trusted, "Restricted"
or "Local" zone will be controlled by the security and privacy settings defined
for that zone. There is often a tradeoff between security and functionality. Web
sites use various types of technology to increase the level of interactivity (what
you can do) you experience while at the site. Examples of some of the types of
technology I'm referring to include
"JavaScript"
and
"ActiveX".
Both of these technologies have been used to exploit and circumvent the security
of computers.
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Another technology used on Web sites is Adobe (formerly Macromedia)
Flash, or often called "Flash". The "Flash player" is used to display games, animations,
advertisements and video within Internet Explorer. Video on the popular Web site
YouTube is made possible through a combination of Flash and an ActiveX control.
The Flash player is included and installed by default with all recent versions
of Internet Explorer. Since it's introduction Flash has been found to have a number
of security vulnerabilities. Some of these vulnerabilities pose a serious security/privacy
threat if exploited by a malicious individual. You can increase your security
when you use the Internet if you disable the Flash player. You can
download a freely available uninstaller program to disable the
Adobe Flash Player. Flash can also be disabled using "Spyware
Blaster" which I introduce later in this tutorial.
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Learn more about the Flash players security vulnerabilities by typing the word
"Flash" into the search box
at the US-CERT's (United States Computer Emergency Readiness Team) Web site.
US-CERT keeps
a large database of known security vulnerabilities discovered within commonly used
computer applications. US-CERT is part of the United States Department of Homeland
Security.
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Increase Trusted Zone Security
Let's increase/improve the security settings for the "Trusted Zone" next. The
"Internet Options" dialog box should still be open from our previous section. If
you closed it by accident open/run Internet Explorer and click:
- "Tools" on the menu bar
- then "Internet Options..."
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Click the:
- "Security" tab then
- "Trusted Sites" icon (green ball) to highlight it
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Click and:
- hold down your left mouse button on the slider
- drag the slider upward to the "Medium" setting (see image above)
Set the "Local intranet" zone to "Medium" and the "Internet zone" to
"High". Use the steps we followed to adjust the "Trusted sites" zone to
"Medium". However, begin by choosing the specific zone you wish to adjust. You can
click the "Custom Level..." button to make individual changes to specific settings.
You must click the "Reset" button to apply any changes you make within the "Custom
Level" dialog. Do not make changes to "Custom Level" settings you do not
absolutely understand. Save your changes by clicking the:
- "Apply"
- then "OK" buttons
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