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

Advertisement Tejasvi began coding in eighth grade, taking cybersecurity classes and attending summer programs sponsored by the nonprofit Girls Who Code. —Jeffrey Kluger, Time, 9 Sep. 2025

Customers ask about cybersecurity at the start of every relationship in the form of vendor assessments or as part of due diligence. —Craig Burland, Forbes.com, 9 Sep. 2025

The announcement also included a safety reminder that urged companies to tighten cybersecurity practices when handling Chinese citizens’ personal data. —Denni Hu, Footwear News, 9 Sep. 2025

Aaron Rose, security architect manager at cybersecurity firm Check Point Software, told Nexstar in an email that the crooks often use victims’ personal interests against them. —Jeremy Tanner, The Hill, 30 Aug. 2025

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