cybersecurity

noun

cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˌkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack

Examples of cybersecurity 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.
Companies are layering in additional home security, personal security, and cybersecurity protections for CEOs and high-profile executives and board members. Amanda Gerut, Fortune, 21 Oct. 2025 Civilians working in cybersecurity, medical care, weapons systems maintenance, intelligence and logistics are still working and are not included in Trump’s order to pay active-duty personnel. Terry Moseley, USA Today, 21 Oct. 2025 Betsy Cooper, a cybersecurity expert and the director of the Aspen Institute's Policy Academy, says there are pros and cons to companies using Amazon or another big provider for cloud computing. Jaclyn Diaz, NPR, 20 Oct. 2025 Kurt's key takeaway If the recent breaches are any indication, third-party services that companies rely on are often the weakest link in cybersecurity. Kurt Knutsson, FOXNews.com, 19 Oct. 2025 See All Example Sentences for cybersecurity

Word History

First Known Use

1989, in the meaning defined above

Time Traveler
The first known use of cybersecurity was in 1989

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Cite this Entry

“Cybersecurity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cybersecurity. Accessed 24 Oct. 2025.

Legal Definition

cybersecurity

noun
cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˈkyu̇r-ə-tē How to pronounce cybersecurity (audio)
: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack
Last Updated: - Updated example sentences
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