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[[Android]] devices and some versions of the [[Apple Inc.|Apple]] iOS mobile operating system are vulnerable to malicious code contained in PDF files.<ref>Amy Gahran. [http://articles.cnn.com/2011-07-11/tech/gahran.ios.malware_1_pdf-files-ios-iphone?_s=PM:TECH iPhone, iPad users: Watch out for malicious PDF files], ''[[CNN]]'', July 11, 2011.</ref><ref>''The Mac Security Blog''. [http://blog.intego.com/2011/07/07/iphone-pdf-vulnerability-creates-security-risks-allows-easy-jailbreaks/ iOS PDF Vulnerability Creates Security Risks, Allows Easy Jailbreaks], blog.intego.com, July 7, 2011.</ref>  Security researchers at [[Intego]] noted that while there is currently no known malware for iOS, files that flow through mobile devices and into [[home]] and [[office]] computers by email or remote storage can contain malware and worms that are harmful to the Mac and Windows operating systems.<ref>Killian Bell. [http://www.cultofmac.com/integos-virusbarrier-for-ios-will-stop-your-iphone-from-being-a-typhoid-mary/104264 Intego’s VirusBarrier for iOS Will Stop Your iPhone From Being A Typhoid Mary], ''Cult of Mac'', July 12, 2011.</ref>  For example, once infected, an [[iPhone]] would act as an [[asymptomatic carrier]], allowing [[criminal|cybercriminals]] to access confidential information, intercept phone conversations or take over other aspects of the infected device.   

[[Android]] devices and some versions of the [[Apple Inc.|Apple]] iOS mobile operating system are vulnerable to malicious code contained in PDF files.<ref>Amy Gahran. [http://articles.cnn.com/2011-07-11/tech/gahran.ios.malware_1_pdf-files-ios-iphone?_s=PM:TECH iPhone, iPad users: Watch out for malicious PDF files], ''[[CNN]]'', July 11, 2011.</ref><ref>''The Mac Security Blog''. [http://blog.intego.com/2011/07/07/iphone-pdf-vulnerability-creates-security-risks-allows-easy-jailbreaks/ iOS PDF Vulnerability Creates Security Risks, Allows Easy Jailbreaks], blog.intego.com, July 7, 2011.</ref>  Security researchers at [[Intego]] noted that while there is currently no known malware for iOS, files that flow through mobile devices and into [[home]] and [[office]] computers by email or remote storage can contain malware and worms that are harmful to the Mac and Windows operating systems.<ref>Killian Bell. [http://www.cultofmac.com/integos-virusbarrier-for-ios-will-stop-your-iphone-from-being-a-typhoid-mary/104264 Intego’s VirusBarrier for iOS Will Stop Your iPhone From Being A Typhoid Mary], ''Cult of Mac'', July 12, 2011.</ref>  For example, once infected, an [[iPhone]] would act as an [[asymptomatic carrier]], allowing [[criminal|cybercriminals]] to access confidential information, intercept phone conversations or take over other aspects of the infected device.   

===Macro Virus===

===Other Malware===

One serious type of malware is macro viruses that affect [[Microsoft]] [[Microsoft Office|Word]] and [[Microsoft Excel|Excel]].  These viruses spread among Word and Excel applications and documents, and, unlike other types of malware, affect Macs and Windows alike.

In addition to the [[Linux Virus]], [[Macro Virus]], [[Windows Virus]], and [[Mac Virus]], a number of other types of malware exist for computer operating systems.  This includes spyware, adware, keyloggers, and scareware (rogue software that claims to serve a purpose, usually pretending to be security software).

==References==

==References==