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.
“Some of them have HR departments and performance reviews,” said Ben Bernstein, a cybersecurity expert at Huntress.
From The Wall Street Journal ● Aug. 9, 2026
The Cyberspace Administration of China, the country’s top cyber watchdog, announced Thursday a formal security review into the cybersecurity company, citing potential national security risks.
From The Wall Street Journal ● Aug. 7, 2026
Meta said one of its AI models accessed the internet and hacked a third-party service during a cybersecurity test.
From The Wall Street Journal ● Aug. 7, 2026
Under the company’s framework, a model reaches the “critical” cybersecurity threshold if it can autonomously find and exploit vulnerabilities, or carry out end-to-end cyberattacks against hardened targets with only high-level instructions.
From The Wall Street Journal ● Aug. 7, 2026
AllHere, the company at the center of the FBI investigation, paid $4,633 for a trip in 2024 to Washington, where Carvalho participated in a cybersecurity conference at the Biden White House, the letter alleged.
From Los Angeles Times ● Aug. 4, 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.
