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cybersecurity

American  
[sahy-ber-si-kyoor-i-tee] / ˌsaɪ bər sɪˈkyʊər 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.

Shares of identity-management company Okta are up 27.8% on Friday following an earnings beat, part of a broader trend of cybersecurity stocks benefiting from AI as the technology increases the need for security platforms.

From MarketWatch • May 29, 2026

“The whole data ecosystem, data infrastructure ecosystem and cybersecurity together are phenomenal thematic opportunities to play the AI cycle.”

From MarketWatch • May 29, 2026

Just look at customer-relationship management giant Salesforce or cybersecurity company Zscaler, both of which delivered underwhelming figures despite making multiple AI-related acquisitions in the hope of riding the trend.

From Barron's • May 28, 2026

A former cybersecurity expert, he came across videos of people intentionally frustrating scammers online a few years ago and immediately understood the appeal.

From The Wall Street Journal • May 28, 2026

Other cities have ended their relationships with Flock Safety over its ties to the federal government and concerns about cybersecurity and privacy.

From Los Angeles Times • May 28, 2026

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