What is a virus?

$q,$

A network attack in which an intruder gains access to a network and stays there$-$undetectedwith the intention of stealing data over a long period of time. $q,$

The theft of personal information, which is then used without the owner's permission, often to commit fraud or other crimes

Phishing variant using voice mail message

A piece of code, usually disguised as something else, that causes a computer to behave in an unexpected and usually undesirable manner.