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Viruses, Worms, and Trojan Horses
As computer devices have become more pervasive, so has Malware. Cell
phones, email, instant messaging, internet browsing, everyone is threatened.
An Insecure Future Niall Murphy, Embedded Systems Programming
Introduction to Viruses, Worms, and Trojan Horses
Microsoft
Definition of Worm:
A program that makes copies of itself; for example, from one disk drive to
another, or by copying itself using email or another transport mechanism. The
worm may do damage and compromise the security of the computer. It may arrive
in the form of a joke program or software of some sort. -
Symantec Security Response Glossary
Definition of Virus:
A program or code that replicates; that is, infects another program, boot
sector, partition sector, or document that supports macros, by inserting itself
or attaching itself to that medium. Most viruses only replicate, though, many
do a large amount of damage as well. - Symantec
Security Response Glossary
Definition of Trojan Horse:
A program that neither replicates nor copies itself, but causes damage or
compromises the security of the computer. Typically, an individual emails a
Trojan Horse to you-it does not email itself-and it may arrive in the form of a
joke program or software of some sort. - Symantec
Security Response Glossary
The Fight Against Viruses, Worms, and Trojan Horses
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