1
: one that hacks
2
: a person who is inexperienced or unskilled at a particular activity
a tennis hacker
3
: an expert at programming and solving problems with a computer
4
: a person who illegally gains access to and sometimes tampers with information in a computer system
Examples of hacker in a Sentence
My friends and I have been playing golf for years, but we're still just a bunch of hackers.
the company's security experts spent days trying to figure out how a hacker could have gotten past the firewall
Recent Examples on the Web
In 2014, a hacker claimed to have cloned a fingerprint of European Commission President Ursula von der Leyen, then Germany’s defence minister, using close-up photos taken at a press event.
—
Chas Newkey-Burden,
TheWeek,
29 June 2026
An investigation conducted jointly with the US government and European partners revealed that the attacks on accounts were carried out by hackers from Iran and post-Soviet countries.
—
Dan Goodin,
ArsTechnica,
29 June 2026
But the recent action on Anthropic, as well as asking OpenAI to limit its own newest model, comes after experts have fretted for months that Mythos could pose a security risk by giving hackers and other bad actors access to AI capable of finding and exploiting vulnerabilities exceptionally quickly.
—
Hadas Gold,
CNN Money,
27 June 2026
Officials have grown increasingly concerned since Anthropic warned earlier this year that its Mythos model was adept at finding software flaws in a way that could be weaponized by malicious hackers and threaten critical computer networks around the world.
—
Arkansas Online,
27 June 2026
See All Example Sentences for hacker
Examples are automatically compiled from online sources to
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Chas Newkey-Burden,
TheWeek,
29 June 2026
An investigation conducted jointly with the US government and European partners revealed that the attacks on accounts were carried out by hackers from Iran and post-Soviet countries.
—
Dan Goodin,
ArsTechnica,
29 June 2026
But the recent action on Anthropic, as well as asking OpenAI to limit its own newest model, comes after experts have fretted for months that Mythos could pose a security risk by giving hackers and other bad actors access to AI capable of finding and exploiting vulnerabilities exceptionally quickly.
—
Hadas Gold,
CNN Money,
27 June 2026
Officials have grown increasingly concerned since Anthropic warned earlier this year that its Mythos model was adept at finding software flaws in a way that could be weaponized by malicious hackers and threaten critical computer networks around the world.
—
Arkansas Online,
27 June 2026
See All Example Sentences for hacker
Cite this Entry
“Hacker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hacker. Accessed 3 Jul. 2026.
Copy CitationKids Definition
hacker
noun
hack·er
ˈhak-ər 
1
: one that hacks
2
: a person who is unskilled at a particular activity
3
: an expert at programming and solving problems with a computer
4
: a person who illegally gains access to a computer system
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