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

The White House is racing to prepare for Anthropic’s latest AI model, Mythos, which the firm says could pose cybersecurity risks.

From The Wall Street Journal • Apr. 19, 2026

So where there is good cybersecurity, this model would, in theory, hopefully be stopped.

From BBC • Apr. 17, 2026

Anthropic has warned that the model — which was accidentally leaked in March and is now in limited preview to select companies — is its most powerful yet and could have serious cybersecurity ramifications.

From MarketWatch • Apr. 16, 2026

She also covered national security and cybersecurity during her time at the newspaper.

From The Wall Street Journal • Apr. 16, 2026

AI has also raised big questions about cybersecurity, code creation, and next-stage development.

From Barron's • Apr. 15, 2026