malware

American  

[mal-wair] / ˈmælˌwɛər /

noun

Digital Technology.

1. software intended to damage a computer, mobile device, computer system, or computer network, or to take partial control over its operation.

   tips on finding and removing viruses, spyware, and other malware.

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malware British  

/ ˈmælwɛə /

noun

1. a computer program designed specifically to damage or disrupt a system, such as a virus

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malware Scientific  

/ măl′wâr′ /

1. Software that is written and distributed for malicious purposes, such as impairing or destroying computer systems. Computer viruses are malware.

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Etymology

Origin of malware

First recorded in 1990–95; mal(icious) + -ware

Explanation

Look out! Computer programs that are intended to cause harm or damage your computer are malware. Viruses and spyware are common types of malware. Malware is a code or file that's meant to injure computer users by stealing their data, secretly monitoring their activity, or harming the computer itself. The term malware, which was first used in 1997, is short for "malicious software." If your computer has a firewall or antivirus software, that's your protection against malware. You can also avoid it by not clicking on mysterious links sent from unknown email addresses.

Example Sentences

"It can carry legal consequences and expose viewers to fraud, malware, harmful content and the theft of personal data," he said.

From BBC • May 23, 2026

Last November, Google’s Threat Intelligence Group published a report showing that bad actors are deploying AI-enhanced malware with the capability to rewrite its source code midexecution to avoid antivirus software.

From MarketWatch • Apr. 18, 2026

Past heists relied more on novel malware and identity fraud, but the April 1 campaign leaned heavily on actual human interaction.

From The Wall Street Journal • Apr. 15, 2026

"The ultimate weapon would be malware that has no pre-programming," Meyers said.

From Barron's • Apr. 10, 2026

Harmless-looking digital images that contain malware are yet another.

From "The Woman All Spies Fear" by Amy Butler Greenfield