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

The company, which also makes the AI model Claude, has claimed that Mythos is currently too advanced for public release, and is instead entrusting the model to cybersecurity experts for the time being. —Justin Klawans, TheWeek, 9 Apr. 2026

By many estimates, quantum computers will need millions of qubits to realize their potential applications in cybersecurity, drug development, and other industries. —IEEE Spectrum, 9 Apr. 2026

Various information technology and cybersecurity jobs were among the roles slashed as part of the layoffs. —Queenie Wong, Los Angeles Times, 9 Apr. 2026

Two cybersecurity stocks are likely to gain ground following Anthropic's release of an advanced artificial intelligence solution tied to Project Glasswing, its latest cybersecurity initiative, according to JPMorgan. —Liz Napolitano, CNBC, 8 Apr. 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