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

Through rules that promote cross-border data flows, regional commerce, and harmonized cybersecurity standards, DEFA will help ASEAN embrace the modern-day digital economy. — Jon M. Huntsman, Fortune, 24 Sep. 2026

In cybersecurity, that could mean putting teams through realistic scenarios where AI recommends a course of action and employees must evaluate the recommendation and decide when human intervention is necessary. — Haris Pylarinos, Forbes.com, 23 Sep. 2026

ShinyHunters has not said what will happen if the FBI misses the deadline, but cybersecurity experts told the NYT that most likely the data will be leaked online. — Ashley Belanger, ArsTechnica, 23 Sep. 2026

The National Guard can legally be used to support elections in many capacities — like logistical or cybersecurity purposes — when ordered by state governors. — Kat Lonsdorf, NPR, 23 Sep. 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