cy·​ber·​se·​cu·​ri·​ty | \ ˈsī-bər-si-ˌkyu̇r-ə-tē \

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

The college will offer bachelor of science degrees in Cyber Engineering, Electrical Engineering and Computer Science, as well as courses on cybersecurity, cloud computing, mobility, data analytics and project management, the school said. Stephen Tucker Paulsen, Houston Chronicle, "Houston Baptist receives $2.5 million gift to launch new college," 26 June 2018 But there is no indication that the two leaders discussed cybersecurity, worrying experts who warn that North Korea’s cyberwarfare capabilities pose an immediate threat to US interests that warrants high-level attention. Tami Abdollah,, "Summit does not deal with North Korea’s hacking," 16 June 2018 Nearly two-thirds of Americans have been victimized by data theft of some kind, according to a Pew Research Center report on cybersecurity released last year. Suzanne Rowan Kelleher, Condé Nast Traveler, "6 Ways You Put Your Data at Risk When You Travel," 6 Dec. 2018 Community colleges and universities are building cybersecurity institutes. Joe Pappalardo, Popular Mechanics, "Want to Be A Hacker? Go to Dallas.," 4 Dec. 2018 Meanwhile, cybersecurity funds First Trust Nasdaq Cybersecurity ETF (CIBR) and ETFMG Prime Cyber Security (HACK) netted more than $600 million in new assets combined through November. Tanzeel Akhtar, WSJ, "Thematic ETFs Are the Rage—Until They Fail," 9 Dec. 2018 Reminder: In 2017, Trump appointed Giuliani as a cybersecurity adviser. Emily Stewart, Vox, "Rudy Giuliani’s bizarre Twitter conspiracy theory, explained," 5 Dec. 2018 In June, the Defense Department suspended the purchase of all commercial, off-the-shelf drones until a cybersecurity risk assessment strategy was established. Matthew Pennington, The Seattle Times, "US panel warns against government purchase of Chinese tech," 14 Nov. 2018 Senators on both sides of the aisle have legitimate concerns — not just about safety after recent accidents involving self-driving cars, but also about cybersecurity and the impact on jobs. Verge Staff, The Verge, "What the new Congress means for space, self-driving cars, and regulating Facebook," 7 Nov. 2018

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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12 Jan 2019

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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 \

Legal Definition of cybersecurity 

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

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