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pages saved. If encrypted <strong>web</strong>pages are cached, <strong>the</strong> copies saved to your hard<br />

drive are not encrypted and can be read by someone who might gain access to your<br />

computer using malicious software such as a Trojan horse or virus (or even<br />

someone with physical access to your computer).<br />

To prevent this from happening, select:<br />

Tools I Internet Options I Advanced I Security<br />

• Check box next to "Do Not Save Encrypted Pages to Disk"<br />

Next, you need to erase any encrypted pages that might have already been saved to<br />

disk.<br />

Tools I Internet Options I General I Temporary Internet Files I Delete Files<br />

In pop-up message that says "Delete all offline content," click OK<br />

Handle Microsoft Files Safely<br />

It can be risky to open certain Microsoft file types, especially those you may<br />

encounter on <strong>the</strong> Internet or in email, because of <strong>the</strong> potential for infection via what<br />

are known as macro viruses. Macro viruses exploit an application such as Word or<br />

Excel (which use little programs called macros) to infect a document and <strong>the</strong>n<br />

spread <strong>the</strong> infection to o<strong>the</strong>r computers and networks. One of <strong>the</strong> dangers with<br />

macro viruses is that <strong>the</strong>y do not infect programs, so you do not have to run an<br />

executable file to become infected. All you need to do is to open an infected Word,<br />

Excel, Access, or PowerPoint file to activate <strong>the</strong> virus.<br />

However, <strong>the</strong>re are some simple precautions you should take to avoid <strong>the</strong> risk of<br />

infection. After all, <strong>the</strong> awful Melissa virus of 1999 was a Word 97 and Word 2000<br />

macro virus, and it spread like crazy around <strong>the</strong> world very quickly as an email<br />

attachment. There was ano<strong>the</strong>r major outbreak of Word macro viruses in 2006, so<br />

<strong>the</strong> problem is still very much with us. As more search engines make it possible to<br />

search for non-HTML file formats, including all Microsoft file types, it is vital to take<br />

steps to protect yourself and your employer from potentially damaging viruses that<br />

could lurk in <strong>the</strong>se types of files.<br />

There are several ways to handle <strong>the</strong> problem of macro viruses and prevent both<br />

infection and spread of <strong>the</strong>se nuisances:<br />

~ One of <strong>the</strong> safest and easiest ways is to use Google or Yahoo to locate <strong>the</strong><br />

<strong>web</strong> page with <strong>the</strong> link to <strong>the</strong> file you wish to view, <strong>the</strong>n select view as html or<br />

view as text. These options will permit you to see <strong>the</strong> file (whe<strong>the</strong>r it is a .doc,<br />

.xls, .ppt, .ps, etc.) as an HTML file or a text file (in <strong>the</strong> case of Postscript files<br />

in Google) with no fear of viruses.<br />

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