A(n) is software that can attach itself to other software or to disk media and cause harm to the programs and data stored in a computer.

A virus.

Explanation:

The aim of any virus is to distort the regular functionality of any system or program. Because viruses are computer programs, once they are executed, inserts their code into the system and modifies other programs and applications to function abnormally.

Viruses are deployed for different reasons, some of which are for sabotage, profit in cases of ransomware, for personal amusement, to send a political message or to test for cybersecurity issues.

The impact of viruses on our economy is enormous causing billions of dollars worth of damages.

answer; defense;

answerrandom access memory (ram);