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ASKBILLFIRST | |||||||||||||
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Tech Stuff in a Non-Tech Sort of Way |
ISSUE #7 | |||||||||||||
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In this issue |
February 28, 2009 | |||||||||||||
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My Blog |
Here are some recent entries from my
blog that you might find interesting.
Adobe
Reader Flaw Could Compromise Your Computer Adobe issued an advisory Thursday warning that its Reader and Acrobat software versions 9 and earlier contain a vulnerability that could allow attackers to take complete control over a system if the user were to open a poisoned PDF file. Adobe said it doesn't plan to issue an update to plug the security hole until March 11. Adobe Reader and Acrobat users can significantly reduce their exposure to such attacks by disabling Javascript within the application. To nix Javascript, select "Edit," "Preferences," "Javascript," and uncheck the box next to "Enable Acrobat Javascript." Also, you must regularly update and patch your computer with Microsofts security updates as well as updates for other programs running on your computer. I recommend running an online scan from Secunia and follow its instructions for updates: (http://secunia.com/vulnerability_scanning/online ). The past several issues
have covered various aspects of pc security. I summarized those items
in the last issue, which you can review by clicking on the link to Issue
#6 on the left. In this issue, I am going to discuss what happens to files
after you delete them and what you should do when you want them permanently
gone. When you delete a file from your computer (and it needn't be Windows, this is common to every type of PC), that file doesn't "go away," even if you empty the Recycle Bin. Rather, to save wear and tear on your hard drive and to simplify the operation, your computer just eliminates the record of where the file began. Think of your PC as containing a giant "shopping list" of all the files on its hard drive. Delete the canned peaches off that shopping list and the store doesn't actually get rid of the peaches. It just "forgets" that they are there. The space allocated to the peaches remains there until the store needs the space for something else. There's good and bad in this. The good is that if you accidentally delete something you have a good chance of being able to get it back. The bad: So can anyone else. If you're sure you want to delete those files for good, there's plenty of software for that, essentially replacing the recycle bin with the equivalent of a paper shredder that wipes any file you delete for good. If you install one, tread with caution: Once you delete something, even by mistake, there's no going back. Simple File Shredder is a good (and free) choice to check out. Next month I'll discuss how to recover files you've accidentally deleted.
I've been focusing on Google tips over the past several months, but don't think that Google is the only way to search for things on the internet. You will get different results from different search engines. Some of the other popular search engines are: Yahoo.com
If you're using a major search engine to find information on the Web, you're missing out on some of the best search experiences. With the help of a metasearch engine--a service that grabs results from multiple search engines--you'll find relevant results quickly. Some of the more popular "meta" search engines are: Dogpile Search:Searches Google, Yahoo, LookSmart, Ask.com,
MSN search, and more. Then, there are the comparison shopping search engines: Froogle -
part of the Google family, this site is still under
development. Question of the month
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