Word.ws English Dictionary

threat actor

threat actor noun: a person or entity that conducts malicious activities against digital targets, particularly cyberattacks.

Noun

threat actor (plural threat actors)

  1. (computer security) A person or entity that conducts malicious activities against digital targets, particularly cyberattacks.
    • Threat actors have repeatedly attempted to breach our systems, without success.
    • A pure threat actor is less complex in capabilities and intent than a mixed type. The most complex actor would possess “the highest and most encompassing” capabilities and intent and compromise a threat kingdom of potential strategies.2000 August, Bill Flynt, “Threat Kingdom”, in Military Review, volume 80, number 4, United States Army Combined Arms Center, page 17

Examples of threat actor in a sentence

  • As noted above, multiple threat actor groups are actively working to expand and improve the DDoS attack capabilities of Mirai-variant botnets.2016 October 26, Roland Dobbins, Steinthor Bjarnason, “Mirai IoT Botnet Description and DDoS Attack Mitigation”, in NETSCOUT, archived from...
  • The compromised dataset appeared on a notorious hacking forum earlier this week, posted by a threat actor operating under the alias "Solonik."2026 January 10, Anu Priya, “17.5 Million Instagram Accounts Exposed in Major Data Leak”, in Cyber Press, archived from the original on 10...

Forms of threat actor

pluralthreat actors

Origin of threat actor

Likely US Government jargon, derived from actor (“one that takes part in an action”). First attested in 2000.

Questions about threat actor

What does threat actor mean?
Threat actor means a person or entity that conducts malicious activities against digital targets, particularly cyberattacks.
How do you use threat actor in a sentence?
As noted above, multiple threat actor groups are actively working to expand and improve the DDoS attack capabilities of Mirai-variant botnets.
What part of speech is threat actor?
Threat actor is a noun.
What is the plural of threat actor?
The plural of threat actor is threat actors.

Words near threat actor in the dictionary

  1. threasure
  2. threasures
  3. threasuries
  4. threasury
  5. threat
  6. threat actor
  7. threat actors
  8. THREATCON
  9. threated
  10. threaten
  11. threatenable

Source and license

Adapted from Wiktionary: threat actor (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “threat actor.” Word.ws, https://word.ws/threat_actor. Based on Wiktionary, CC BY-SA 4.0.