malware

noun

mal·​ware ˈmal-ˌwer How to pronounce malware (audio)
: software designed to interfere with a computer's normal functioning

Examples of malware in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Worse still, some unsubscribe links are malicious traps designed to steal personal information or distribute malware. Kurt Knutsson, FOXNews.com, 30 Sep. 2025 To compromise some of the devices, the creators of the botnet initially breached an update server for a router manufacturer called Totolink to distribute malware. Senior Reporter, PC Magazine, 23 Sep. 2025 Its malware generally aims to collect as much information from targets as possible over a short period of time. Dan Goodin, ArsTechnica, 19 Sep. 2025 Just last month, Anthropic warned that Claude had been used in real-world cyberattacks, helping code malware and craft phishing emails. Thomas Brewster, Forbes.com, 17 Sep. 2025 See All Example Sentences for malware

Word History

Etymology

malicious + -ware (as in software)

First Known Use

1990, in the meaning defined above

Time Traveler
The first known use of malware was in 1990

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Cite this Entry

“Malware.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malware. Accessed 5 Oct. 2025.

Kids Definition

malware

noun
ˈmal-ˌwer
: software designed to interfere with a computer's normal functioning

Legal Definition

malware

noun
mal·​ware ˈmal-ˌwer How to pronounce malware (audio)
: software that is designed to interfere with a computer's normal functioning and that can be used to commit cybercrime (as by revealing passwords, PINs, and other sensitive data)
Etymology

mal- bad + software

More from Merriam-Webster on malware

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