Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

cybersecurity

play
noun cy·ber·se·cu·ri·ty \-si-ˌkyu̇r-ə-tē\

Definition of cybersecurity

  1. measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack



1994

First Known Use of cybersecurity

1994


Law Dictionary

cybersecurity

play
noun cy·ber·se·cu·ri·ty \ˈsī-bər-si-ˈkyu̇r-ə-tē\

Legal Definition of cybersecurity

  1. :  measures taken to protect a computer or computer system (as on the Internet) against unauthorized access or attack




Seen and Heard

What made you want to look up cybersecurity? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to manage or play awkwardly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

disapprove soothe reduce perplex
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ