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. )

Example Sentences

See Examples For:

cybersecurity

Improving cybersecurity practices such as using two-factor authentication for devices is a start.

From Los Angeles Times ● Jul. 29, 2026

—Bob is a San Francisco-based tech reporter covering cybersecurity.

From The Wall Street Journal ● Jul. 26, 2026

"It's a very hard research challenge," said Dan Lahav, head of Irregular, a cybersecurity firm dedicated to cutting-edge AI.

From Barron's ● Jul. 24, 2026

The technology can also help boost cybersecurity at the adviser’s firm and reduce fraud.

From MarketWatch ● Jul. 24, 2026

Wolf said it was a warning to other companies that they must strengthen their cybersecurity defences to counter such attacks.

From BBC ● Jul. 23, 2026