A software program that migrates through networks and operating systems (OS) by attaching themselves to different programs and databases is a: virus.
What is a virus?
A virus can be defined as a harmful or malicious software program that is designed and developed to migrate through networks and operating systems (OS) of a computer (host), especially by attaching themselves to different programs and databases.
This ultimately implies that, a virus is a malicious software program which causes damage to a computer and user files, if not detected and properly managed.
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