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

Maintaining fraud protection, cybersecurity, and the software necessary to safeguard consumer data will naturally incur large costs for the bank. —Patrick Gleason, Forbes.com, 18 Aug. 2025

Tianyi Zhang, general manager of risk management and cybersecurity at Ant International, told Fortune the company found that more than 70% of new enrollments in some markets were potential deepfake attempts. —Sasha Rogelberg, Fortune, 15 Aug. 2025

Shares of the cybersecurity company are down more than 3% this year, but jumped more than 5% this week. —Pia Singh, CNBC, 15 Aug. 2025

The second Trump administration has its first federal cybersecurity debacle to deal with. —Lily Hay Newman, Wired News, 14 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