spyware

noun

spy·​ware ˈspī-ˌwer How to pronounce spyware (audio)
: software that is installed in a computer or mobile device without the user's knowledge and that transmits information about the user's activities
Jan should scan her computer for viruses, worms, and spywareKenneth Baldauf and Ralph Stair
Smartphones belonging to more than three dozen journalists, human rights activists, and business executives have been infected with powerful spyware that an Israeli firm sells, purportedly to catch terrorists and criminals, The Washington Post and other publications reported.Dan Goodin

Examples of spyware 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.
Some recent cases highlight how messy and dangerous this space has become: The NSO Group Spyware Case – The Israeli firm NSO Group, known for its Pegasus spyware, initially marketed its tools for government intelligence operations. Emil Sayegh, Forbes, 11 Mar. 2025 WhatsApp says the spyware’s capabilities included siphoning user messages and other data stored on the device. Michael Kan, PCMAG, 31 Jan. 2025 Phishing emails, malware-laden attachments and fraudulent schemes now lurk within spam messages, tricking unsuspecting users into clicking malicious links, revealing sensitive information or even infecting their devices with ransomware and spyware. Kurt Knutsson, Cyberguy Report, Fox News, 23 Feb. 2025 The spokesperson said that the company’s security team and Citizen Lab, a cybersecurity research lab based out of the Munk School of Global Affairs at the University of Toronto, helped track the spyware campaign. Bruna Horvath, NBC News, 31 Jan. 2025 See All Example Sentences for spyware

Word History

First Known Use

1994, in the meaning defined above

Time Traveler
The first known use of spyware was in 1994

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Cite this Entry

“Spyware.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spyware. Accessed 24 Mar. 2025.

Kids Definition

spyware

noun
spy·​ware
ˈspī-ˌwer
: software that is installed in a computer or mobile device without the user's knowledge and that transmits information about the user's activities

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Last Updated: - Updated example sentences
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