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.
More important will be management’s near-term outlook and commentary on the call to assure investors demand for cybersecurity has taken a definitive leg higher now that AI is being ingrained into every aspect of the enterprise. Kevin Stankiewicz,zev Fima, CNBC, 31 May 2026 Researchers believe future quantum systems could eventually tackle certain calculations far beyond the reach of today’s most powerful supercomputers, with potential applications spanning drug discovery, advanced materials, logistics, cybersecurity, defense, and artificial intelligence. Kaif Shaikh, Interesting Engineering, 31 May 2026 Forty-eight percent of cybersecurity professionals now identify agentic AI as the single most dangerous attack vector in their organizations, according to recent surveys. Alexander Puutio, Forbes.com, 31 May 2026 Quantum, which is still in its early stages for practical applications, could speed up health care research and medical diagnoses, help detect fraud and manage investment portfolios and improve cybersecurity. State House News Service, Boston Herald, 29 May 2026 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 7 Jun. 2026.

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
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