plural cyberattacks
Definition of cyberattack
: an attempt to gain illegal access to a computer or computer system for the purpose of causing damage or harm
An undermine-first strategy allows the United States government to intrude into adversaries' systems, exploiting this covert access to gather intelligence and occasionally to deliver a destructive cyberattack.— Joshua A. Kroll If your data is valuable enough, there is almost nothing you can do to provide total security against an expert adversary. Simply put, the attacker may be smarter than anyone you have defending the network. Cyberattacks are not only impossible to block, they're often difficult to detect; you may not even know you're under attack in the first place.— Robert W. Lucky
Buying Guide
Our Reviews team has selected the best laptops.
Test Your Vocabulary
Words Named After People
-
- Namesake of the leotard, Jules Léotard had what profession?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share cyberattack
Time Traveler for cyberattack
The first known use of cyberattack was in 1996
See more words from the same year