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

For now, records will date back to July 25, the start of the city’s crippling cybersecurity incident, which resulted in a backlog of some 4,000 permit applications. —Frederick Melo, Twin Cities, 16 Sep. 2025

Data is quickly becoming the most underappreciated facet of cybersecurity. —Cody Pierce, Forbes.com, 16 Sep. 2025

Information Security Analysts and Cybersecurity Specialists With AI creating new security vulnerabilities, cybersecurity professionals are more essential than ever. —Kimberly Wilson, Essence, 16 Sep. 2025

Its planned debut comes amid an influx of big cybersecurity deals and during a resurgence in IPO activity after soaring inflation and interest rates squashed appetite for tech deals. —Samantha Subin, CNBC, 16 Sep. 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