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.
The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. Kurt Knutsson, FOXNews.com, 31 Jan. 2026 When candidates ran a routine installation, malware was actually installed, which could expose wallets, keys and production systems. Talia Kaplan, CNBC, 30 Jan. 2026 At one point a couple of years ago, Microsoft even used malware-like pop-ups in a disgusting overreach. Tom Warren, The Verge, 29 Jan. 2026 Sonatype’s research found that GPT-5 hallucinated nearly 28% of component versions and, without real-time intelligence, even recommended malware. Tony Bradley, Forbes.com, 28 Jan. 2026 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

Browse Nearby Words

Cite this Entry

“Malware.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malware. Accessed 2 Feb. 2026.

Kids Definition

malware

noun
: 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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