While some viruses did exist for Palm OS based devices, very few were ever designed. Typically, mobile devices are difficult for virus writers to target, since their simplicity provides fewer security holes to target compared to a desktop.

Viruses for Palm OS

Name of Virus	Payload	Date Discovered
LibertyCrack^[1]	Deletes applications and files	August 28, 2000
PEMagic^{[citation needed]}	Erases device ROM	Unknown
Phage^[2]	Deletes applications and files	September 22, 2000
Vapor	Hides all application icons	September 21, 2000

References

^ Distributed as a Trojan in the guise of a crack for shareware program Liberty by Liberty's author Aaron Ardiri. For more information, see "Trojan hits Palm". Philippine Daily Inquirer. Archived from the original on December 21, 2001. Retrieved April 28, 2017.
^ Virus that infects handheld devices that run Palm OS. It was discovered on September 22, 2000. For more information, see http://www.symantec.com/security_response/writeup.jsp?docid=2000-121918-4538-99

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