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

But these and other cybersecurity stocks are still lower year-to-date, in large part because of worries about how Claude and ChatGPT owner OpenAI may impact them.

From Barron's • Apr. 23, 2026

The cybersecurity incident was disclosed on April 1, leading to a 4.5% drop in the stock.

From MarketWatch • Apr. 23, 2026

The French company said the planned investment is part of its strategy to develop sovereign cybersecurity capabilities in France and boost its position in the wider European cybersecurity sector.

From The Wall Street Journal • Apr. 21, 2026

“We view Mythos as the catalyst to AI-driven cybersecurity demand we’ve been looking for,” wrote Heath.

From Barron's • Apr. 21, 2026

Airbus AIR 0.84%increase; green up pointing triangle said it agreed to buy French cybersecurity company Quarkslab as it continues to boost its security credentials.

From The Wall Street Journal • Apr. 21, 2026