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

As early as 2017, the US Army banned the use of DJI drones due to cybersecurity vulnerabilities. —John Liu, CNN Money, 23 Dec. 2025

Commercial robots are far more vulnerable to hacking than many users realise, with cybersecurity experts warning that some machines can be taken over in minutes. —Jijo Malayil, Interesting Engineering, 23 Dec. 2025

Steele’s background is in software, running the companies Splunk and Proofpoint, which focused on data analytics and cybersecurity. —Jessica Mathews, Fortune, 21 Dec. 2025

This approach exposes a persistent blind spot in traditional cybersecurity thinking. —Kurt Knutsson, FOXNews.com, 20 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