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

There are other clouds on the horizon – from concerns about private credit to AI cybersecurity vulnerabilities created by Anthropic's Mythos model.

From BBC • Apr. 18, 2026

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

From BBC • Apr. 17, 2026

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

From The Wall Street Journal • Apr. 16, 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

In a poll of dozens of value-added resellers—companies that customize third-party products before selling them—Microsoft’s AI Copilot, Azure cloud-computing, and cybersecurity products were all seen favorably.

From Barron's • Apr. 15, 2026