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

Carbon builds on that release with improvements in coding, reasoning, cybersecurity, and autonomous task execution. — Neetika Walter, Interesting Engineering, 28 Oct. 2026

Fortune, Lightspeed, and AWS have teamed up to recognize the top cybersecurity startups, in a historic year for the sector. — Morgan Chittum, Fortune, 28 Oct. 2026

The cybersecurity company slid 1% despite reporting earnings and revenue above expectations for its fiscal fourth quarter. — Davis Giangiulio,darla Mercado, Cfp®, CNBC, 27 Oct. 2026

Excluded from the 60,000 workers eligible for severance are people who work in roles tied to data centers, cybersecurity, quantum computing, sales, and marketing, Bloomberg reported. — Liz Rappaport, semafor.com, 27 Oct. 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