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

Definition of exfiltrate

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

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Other Words from exfiltrate

exfiltration \ ˌeks-​(ˌ)fil-​ˈtrā-​shən How to pronounce exfiltration (audio) \ noun

Examples of exfiltrate in a Sentence

Recent Examples on the Web

One involves attaching malicious PDF or Microsoft Word documents that exfiltrate itself when opened. Dan Goodin, Ars Technica, "Decade-old Efail attack can decrypt previously obtained encrypted emails," 14 May 2018 The vulnerabilities allow attackers to exfiltrate email plaintexts by embedding the previously obtained ciphertext into unviewable parts of an email and combining it with HTML coding. Dan Goodin, Ars Technica, "Decade-old Efail attack can decrypt previously obtained encrypted emails," 14 May 2018 The attacker can use their privileged perch to exfiltrate sensitive data, move further inside the compromised network, or as a proxy to conceal hacks on computers outside the network. Dan Goodin, Ars Technica, "Raw sockets backdoor gives attackers complete control of some Linux servers," 16 Feb. 2018 Depending on the results, the second stage would then root the device and begin to exfiltrate device data to a server controlled by the developers. Dan Goodin, Ars Technica, "Stealthy Google Play apps recorded calls and stole e-mails and texts," 27 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'exfiltrate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of exfiltrate

1947, in the meaning defined at transitive sense 1

History and Etymology for exfiltrate

ex- entry 1 + infiltrate

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Time Traveler for exfiltrate

The first known use of exfiltrate was in 1947

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