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cybersecurity

American  
[sahy-ber-si-kyoor-i-tee] / ˌsaɪ bər sɪˈkjʊər ɪ ti /
Or cyber security

noun

  1. precautions taken to guard against crime that involves the internet, especially unauthorized access to computer systems and data connected to the internet.

  2. the state of being protected against such crime.


cybersecurity British  
/ ˌsaɪbəˌsɪˈkjʊərɪtɪ /

noun

  1. computing the state of being safe from electronic crime and the measures taken to achieve this

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of cybersecurity

First recorded in 1985–90; cyber- ( def. ) + security ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Irwin has represented California’s 42nd and 44th Assembly Districts since 2014 and has chaired legislative committees on climate change, cybersecurity, veterans affairs and taxation.

From Los Angeles Times ● Oct. 1, 2026

Google is rolling out the new model to a set of cybersecurity companies before making it available to developers, customers, and consumers at a later date.

From Barron's ● Sep. 30, 2026

The company intends to “gradually expand access” after voluntarily participating in a government program that has cybersecurity experts vet models before their official release.

From MarketWatch ● Sep. 30, 2026

OpenAI, as well as rival AI firm Anthropic, previously delayed public release of certain AI models due to potential risks, mostly pertaining to cybersecurity or hacking concerns.

From BBC ● Sep. 29, 2026

Its enterprise business could benefit from wider offerings in cloud, cybersecurity and artificial intelligence, while fiber customer base should remain broadly stable.

From The Wall Street Journal ● Sep. 28, 2026

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