cy·​ber·​se·​cu·​ri·​ty | \ ˈsī-bər-si-ˌkyu̇r-ə-tē How to pronounce cybersecurity (audio) \

Definition of cybersecurity

: 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

Shares of cybersecurity specialist CrowdStrike Holdings Inc. leapt more than 80% above their initial public offering price in their Wall Street debut, demonstrating investors’ continuing appetite for Silicon Valley business software firms. Alexander Davis, WSJ, "Cybersecurity Firm CrowdStrike Soars in Wall Street Debut," 12 June 2019 Raytheon will give it cybersecurity expertise, helping to solve one of the key concerns airlines have about digitizing parts of their planes. Brooke Sutherland,, "Mega-deal between United Technologies and Raytheon upends the aerospace playing field," 11 June 2019 Huawei's global cybersecurity and privacy officer, John Suffolk, was asked multiple times by members of the Science and Technology Committee if the company had problems working with oppressive regimes. Ben Westcott, CNN, "Huawei executive labeled a 'moral vacuum' in heated UK hearing," 11 June 2019 The shift to cloud computing is changing cybersecurity., "Stories you may have missed from the world of business," 10 June 2019 The customs and border agency is part of the Homeland Security Department, which has primary responsibility for cybersecurity inside the United States. New York Times, "Border Agency’s Images of Travelers Stolen in Hack," 10 June 2019 The bigger company will combine United Technologies’ Pratt & Whitney F-35 fighter jet engines with Raytheon’s Patriot missile-defense products and expertise in areas such as radars, munitions and cybersecurity. Bloomberg, The Mercury News, "United Technologies, Raytheon to combine as defense giant," 9 June 2019 Scott Carpenter, head of policy, Jigsaw—Scott drives international engagement for the Google incubator to solve cybersecurity issues, including the role of AI in geopolitics, radicalization, online harassment, and censorship. Quartz, "Meet the new Quartz Pros: Ghislaine Boddington, Scott Carpenter, Shaun Stewart, Donna Wells," 5 June 2019 Two longtime presidential cybersecurity advisers team up in this important new book. John Timpane,, "Readings by authors in Philly this summer: Jennifer Weiner, Richard Russo, and more," 5 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cybersecurity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cybersecurity

1989, in the meaning defined above

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Statistics for cybersecurity

Last Updated

15 Jun 2019

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Time Traveler for cybersecurity

The first known use of cybersecurity was in 1989

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cy·​ber·​se·​cu·​ri·​ty | \ ˈsī-bər-si-ˈkyu̇r-ə-tē How to pronounce cybersecurity (audio) \

Legal Definition of cybersecurity

: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack

Comments on cybersecurity

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