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.

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cybersecurity British  

/ ˌsaɪbəˌsɪˈkjʊərɪtɪ /

noun

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

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Etymology

Origin of cybersecurity

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

Example Sentences

That concern is now being played out through Adobe, as another analyst downgraded the stock while at the same time upgrading shares of a cybersecurity player.

From MarketWatch • Apr. 27, 2026

Starboard, run by Jeff Smith, has been active with cybersecurity and other tech investments.

From The Wall Street Journal • Apr. 27, 2026

On the same day of his Adobe downgrade, Moskowitz turned more bullish on what he said could be a cybersecurity winner.

From MarketWatch • Apr. 27, 2026

Next up was cybersecurity software, with 19 loans falling an average of 5.3 cents.

From The Wall Street Journal • Apr. 26, 2026

But these and other cybersecurity stocks are still lower year-to-date, in large part because of worries about how Claude and ChatGPT owner OpenAI may impact them.

From Barron's • Apr. 23, 2026