Malware (noun)

1. Software specifically designed to harm or exploit computer systems and networks, such as viruses, worms, trojans, and spyware.
2. Any type of software that can cause harm to a computer system, steal information or disrupt normal computer activities.

Origin:

The word malware is a portmanteau of the words "malicious" and "software". it refers to software specifically designed to harm or exploit computer systems and networks.

Examples:

1. The computer was infected with malware.
2. The malware was designed to steal personal information.
3. The email contained a link to malware.
4. The malware was causing the computer to run slow.
5. The antivirus software detected and removed the malware.