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 legislation also bolsters congressional oversight of the Pentagon’s cybersecurity practices, mandating that the secretary brief the congressional defense committees on the changes no later than June 1, 2026. —Renee Dudley, ProPublica, 31 Dec. 2025

Protecting email this way strengthens every other cybersecurity resolution. —Kurt Knutsson, FOXNews.com, 31 Dec. 2025

And Leyes did not arrive here through the traditional corporate cybersecurity pipeline. —Wyles Daniel, Miami Herald, 31 Dec. 2025

The physical security of such facilities will become a point of innovation to account for additional foot traffic near the technology, though cybersecurity remains the biggest threat. —Reed Albergotti, semafor.com, 31 Dec. 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