A comparison of the top three antivirus firewall software programss reveals similarities and differences. While all the different packages state common objectives and make similar claims, they use different techniques in identifying threats. Some of the packages are free and others charge a subscription fee. The packages vary as to how much they degrade computer performance. Packages also vary to the degree that they handle spyware. Spyware is not a virus per se but, it may be or may not be malicious.
All anti-virus software packages use a virus dictionary. A virus dictionary contains all known virus threats. When the anti-virus software scans your computer it is checking files against entries in the virus dictionary. When a match is made, the file is either cleaned or quarantined.
There is a wide degree of difference on how well leading anti-virus software packages can identify new threats that are not yet in the virus dictionary. The most sophisticated packages use heuristic methods to analyze computer code to find clues that the code may be harmful. The better an anti-virus program is at identifying new threats that are not known yet, the more effective it will be in protecting a computer. The top anti-virus programs employ these sophisticated techniques.
One very effective technique emulates the execution of computer code that is suspected of being malicious. The emulation takes place in a protected portion of the computer’s memory so it can not do any damage. However, the anti-virus program can observe what the code would do if it was actually running in real time. This technique is often called the “sandbox” emulation method.
While these new heuristic techniques may be effective, they can put a drain on computer resources and can slow down your computer. Some leading packages have received quite bad reputations for degrading computer performance. However, the software companies in response have made excellent progress in solving this problem.
There is a wide degree of difference regarding the number of protections, services, and features that the top anti-virus packages have. There are free packages that offer only very basic protection. To get more advanced features you must purchase the package. You should carefully check to see what exactly a package includes. Does it include a firewall? Will it protect you against spyware? Will it scan your email? Will it check for spoofing?
Among the top anti-virus software package some are free and some charge a fee. Some free packages are limited in the number of features. You will need to upgrade to obtain the full suite of features and services. The paid packages must be renewed annually. You must understand that your credit card might be automatically charged the renewal fee. Read your terms of service agreement carefully so that you understand what you are getting into.
As stated earlier, a comparison of the top three antivirus firewall softwares will indicate both similarities and differences. First, this analysis evaluated the various techniques of identifying computer threats including a description of heuristic methods. The differences among leading anti-software packages with the number of services and features that they offered was described. Finally, it was explained how the consumer must be aware of the price and renewal schedule of any package they may purchase.
A comparison of the top antivirus firewall software reveals similarities and differences to ensure that you make the most informed decision possible. We’ve got the ultimate inside info on the best antivirus programs.
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Sat, Mar 27, 2010
PC Security