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

Other Words from exfiltrate

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

Examples of exfiltrate in a Sentence

Recent Examples on the Web Once the payload is delivered, the ransomware will try to establish a connection with the command-and-control server to communicate with the attackers to receive further instructions, exchange encryption keys and/or exfiltrate data. Etay Maor, Forbes, 1 July 2022 What’s more, the packages were programmed to exfiltrate sensitive user information, including bash history and the contents of /etc/shadow, the directory where Linux user password data is stored. Dan Goodin, Ars Technica, 11 May 2022 That full access enabled cybercriminals to exfiltrate tedious amounts of information required to duplicate complicated engineering, including rocket propelled weapons. Nicole Sganga, CBS News, 4 May 2022 In 2018, Russia was caught infecting more than 500,000 consumer routers so the devices could be used to infect the networks they were attached to, exfiltrate passwords, and manipulate traffic passing through the compromised device. Dan Goodin, Ars Technica, 16 Feb. 2022 Collecting this baseline information provides the ability to detect unusual or anomalous API usage that might signal an attack or attempt to exfiltrate sensitive data. Jyoti Bansal, Forbes, 2 Nov. 2021 The film centers around Ivan, played by Chadov, who sets off on a dangerous mission into Syria to exfiltrate his ex-commander Grey after his capture by ISIS. Christopher Vourlias, Variety, 11 Oct. 2021 Experts marveled at the size of the heists and questioned how the hackers were able to exfiltrate so much data without getting caught. Washington Post, 7 Oct. 2021 The Bad Batch, then, is sent to exfiltrate the senator and get him to safety. Alex Kane, USA TODAY, 2 July 2021 See More

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.

First Known Use of exfiltrate

1947, in the meaning defined at transitive sense 1

History and Etymology for exfiltrate

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

Learn More About exfiltrate

Time Traveler for exfiltrate

Time Traveler

The first known use of exfiltrate was in 1947

See more words from the same year

Dictionary Entries Near exfiltrate




See More Nearby Entries 

Statistics for exfiltrate

Cite this Entry

“Exfiltrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exfiltrate. Accessed 29 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!