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

He said cyber ETFs can provide exposure to some companies facing “severe headwinds,” but are included because they are in the cybersecurity business.

From MarketWatch • May 23, 2026

"This works similar to a normal camera, the difference being that in our case, radio waves instead of light waves are used for the recognition," explains the cybersecurity expert.

From Science Daily • May 23, 2026

Administration officials have been trying to bolster cybersecurity following the release of powerful models including Anthropic’s Mythos, but some AI advisers fear the steps could slow down the development of new AI tools.

From The Wall Street Journal • May 21, 2026

Cyber Command – the military nerve center for cybersecurity – partnered to launch what was initially called the Russia Small Group, a task force to guard U.S. election infrastructure against Russian interference.

From Salon • May 21, 2026

This added to investor concerns that AI models could replace cybersecurity functions.

From Barron's • May 19, 2026