: 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.
Once the process finishes, the malware re-enables the Store, reducing the chances that the phone owner will notice anything unusual. — Kurt Knutsson, FOXNews.com, 23 Oct. 2026 Those weaknesses could enable cybercriminals to seize control of unprotected website servers, install malware, pilfer customer data and even take sites down completely. — Megan Cerullo, CBS News, 22 Oct. 2026 Some malware allows a hacker to turn a victim’s phone into a microphone and video camera, turn the phone on or off, and pull and add files. — Matthew Cole, Vanity Fair, 22 Oct. 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

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Cite this Entry

“Malware.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malware. Accessed 27 Oct. 2026.

Kids Definition

: software designed to interfere with a computer's normal functioning

Legal Definition

: 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

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