Linked by David Adams on Fri 10th Jun 2005 15:25 UTC, submitted by tm
Bugs & Viruses Many virus attacks aren't really exploiting weaknesses in your operating sytem: they're simply tricking you into telling the OS to do things that it shouldn't do. The OS is just doing its job, executing code when you say so. Researchers at HP Labs are working on a solution to this problem using the Principle of Least Authority, or POLA -- "limiting the rights of each program to only the ones needed for the job the user wants done"
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by Anonymous on Sat 11th Jun 2005 09:51 UTC

>is there a simple method to know what executable files(.exe)
>have been downloaded in my pc after a day's work?

There are programs like Tripwire which'll alert you whenever there are changes to your machine's filesystems.