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Similar to viruses, computer "worms" have the same replicating behavior as viruses with the exception that they exist as standalone applications instead of tagging along embedded in files.
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When the files are read, the virus continues to spread throughout the system and over networks or physical media to other systems. A true computer virus is defined by having the ability to self-replicate and infect specific programs or files with little or no direct input from the user. There are three main types of malware: viruses, worms, and Trojan horses.
#BEST FREE ANTIVIRUS FOR OSX MAC OS#
As the Mac OS becomes more popular, hackers and malware developers will undoubtedly begin to target the platform more and more. to be one of the fastest growing, leaving the company just shy of 10 percent market share by some estimates. Recent reports have shown Apple's market share in the U.S. Though it is true that OS X has been relatively free of viruses and other malware, in large part this has been because the small Mac market share has made the platform an insignificant target for malware developers however, the landscape is steadily changing. Readers periodically ask about antivirus recommendations for OS X, especially given some of the past rhetoric about Macs not having any viruses.