cybersecurity
Americannoun
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precautions taken to guard against crime that involves the internet, especially unauthorized access to computer systems and data connected to the internet.
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the state of being protected against such crime.
noun
Etymology
Origin of cybersecurity
First recorded in 1985–90; cyber- ( def. ) + security ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The researchers were able to learn about bugs, but such information can also be useful to technology staffers trying to defend networks, cybersecurity experts say.
From The Wall Street Journal • Jun. 14, 2026
The European Union’s executive arm said that it’s assessing Anthropic’s statement and is continuing to talk to allies about the potential risks and cybersecurity concerns related to powerful new AI models.
From Los Angeles Times • Jun. 14, 2026
The report didn’t describe Fable producing more dangerous products, such as “exploit” software that could be used in a cyberattack, according to cybersecurity experts who had viewed the research.
From The Wall Street Journal • Jun. 14, 2026
Investors feel comfortable with a relatively small set of AI winners in data and cybersecurity applications.
From Barron's • Jun. 12, 2026
Beyond a race for economic dominance, the real urgency is the impending threat to cybersecurity, as mature quantum systems will likely undermine the encryption that protects much of the world’s data today.
From Barron's • Jun. 12, 2026
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
