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.

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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. )

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Example Sentences

See Examples For:

cybersecurity

One cybersecurity expert expressed concern that such a vast breach could have occurred based on one compromised username and password.

From Los Angeles Times ● Oct. 17, 2026

In the next, central bankers fret about its power to break the cybersecurity of most of the banking system.

From BBC ● Oct. 17, 2026

A cybersecurity incident at BAE Systems has halted the federal bankruptcy-noticing system since October 9.

From The Wall Street Journal ● Oct. 16, 2026

To find the solution, Church, who works at US cybersecurity firm SentinelOne, needed to learn "very little" about code-breaking techniques or the historical period.

From Barron's ● Oct. 16, 2026

The acquisition comes as cybersecurity vendors scramble to expand their AI capabilities, both to defend against threats that use the technology and to safeguard corporate systems increasingly accessed by autonomous AI tools.

From The Wall Street Journal ● Oct. 15, 2026

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