cybersecurity

noun

cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˌkyu̇r-ə-tē 

: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack

Examples of cybersecurity in a Sentence

Recent Examples on the Web

Huang of the Taiwan Network Information Center said the July incident demonstrated that AI has become the main player in cybersecurity beyond simply assisting human hackers in partial automation tasks. — John Liu, CNN Money, 13 Aug. 2026

The cybersecurity firm Palo Alto Networks recently studied websites at domain names whose URLs are frequently hallucinated by AI chatbots, discovering at some of these sites a range of malware and other malicious code. — David Berreby, IEEE Spectrum, 13 Aug. 2026

But in New York City, where Mayor Zohran Mamdani has refused to renew the license for Waymo, cybersecurity has been missing from the debate over robotaxis. — Joshua Hong, Fortune, 13 Aug. 2026

OpenAI has hired Dali Rajic, who previously served as the president and chief operating officer of the cybersecurity company Wiz, to replace her. — Ashley Capoot, CNBC, 13 Aug. 2026

Word History

First Known Use

1989, in the meaning defined above

Rhymes for cybersecurity

• biosecurity
• immaturity
• insecurity
• prematurity
• impurity
• maturity
• obscurity
• security
• purity
• surety

Legal Definition

cybersecurity

noun

cy·​ber·​se·​cu·​ri·​ty ˈsī-bər-si-ˈkyu̇r-ə-tē 

: measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack