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.
Ransomware can attack database objects, either encrypting or exfiltrating the data. Jakub Lamik, Forbes.com, 18 June 2025 Your regular antivirus should handle eliminating spyware apps that try to steal and exfiltrate personal information. PC Magazine, 11 June 2025 These extensions can silently access, exfiltrate or manipulate data, bypassing security controls and going undetected by endpoint or network monitoring tools. Expert Panel®, Forbes.com, 4 June 2025 What the Socket Threat Research Team discovered, as reported by Olivia Brown, a threat analyst at Socket, is that attackers have created a bunch of malicious Python packages that use Gmail’s SMTP protocol to create a tunnel that can exfiltrate data and execute attack commands. Davey Winder, Forbes.com, 3 May 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 27 Jun. 2025.

Last Updated: - Updated example sentences
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