exfiltrate

verb

ex·​fil·​trate eks-ˈfil-ˌtrāt How to pronounce exfiltrate (audio)
ˈeks-(ˌ)fil-
exfiltrated; exfiltrating

transitive verb

1
: to remove (someone) furtively from a hostile area
Kublinski avoided detection. He was exfiltrated from Poland, with his family, only after being compromised by a leak from the U.S. government.Radek Sikorski
2
: to steal (sensitive data) from a computer (as with a flash drive)

intransitive verb

: to escape from a hostile area
exfiltration noun

Examples of exfiltrate in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
What To Know The new leak allegedly stems from a 400GB trove of user data said to have been exfiltrated by a disgruntled employee during mass layoffs at X following Musk's 2022 acquisition of the company, according to reports from Computing. Jason D. Greenblatt, MSNBC Newsweek, 2 Apr. 2025 These groups, Miller explained, exploit security gaps, leveraging vulnerabilities to move laterally, escalate privileges, exfiltrate sensitive data and ultimately deploy their payloads. Davey Winder, Forbes, 16 Mar. 2025 In the nascent field of AI hacking, indirect prompt injection has become a basic building block for inducing chatbots to exfiltrate sensitive data or perform other malicious actions. Dan Goodin, Ars Technica, 11 Feb. 2025 Like Salt Typhoon, this group is highly proficient in cloud exploitation, using lateral movement techniques to transition from on-premises to cloud environments, maintain persistence and rapidly exfiltrate data. Chris McHenry, Forbes, 25 Mar. 2025 See All Example Sentences for exfiltrate

Word History

Etymology

back-formation from exfiltration, from ex- entry 1 + (in)filtration

First Known Use

1947, in the meaning defined at transitive sense 1

Time Traveler
The first known use of exfiltrate was in 1947

Browse Nearby Words

Cite this Entry

“Exfiltrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exfiltrate. Accessed 15 Apr. 2025.

Last Updated: - Updated example sentences
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