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.
In a blog post on Saturday, Amodei expressed concern about the possibility of AI agents swarming together, going rogue and conducting major cybersecurity breaches that could have devastating implications.
From MarketWatch ● Sep. 12, 2026
In April, Anthropic roiled the AI world when it said it found that its Mythos tool could outperform humans at some hacking and cybersecurity tasks.
From BBC ● Sep. 12, 2026
The company said independent assessments from CrowdStrike and other cybersecurity experts since the Aug. 25 breach haven’t found any evidence of ongoing threat activity or evidence of compromise to its systems or product technologies.
From The Wall Street Journal ● Sep. 10, 2026
Anthropic has granted the European Union’s cybersecurity agency, Enisa, access to its Mythos 5 artificial intelligence model.
From The Wall Street Journal ● Sep. 10, 2026
SailPoint stock declines after the cybersecurity company’s earnings top expectations but revenue misses the mark.
From Barron's ● Sep. 9, 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.
