TechnologyJuly 30, 2026

exfiltration

eks-fil-TRAY-shun

Definition

The unauthorized transfer or removal of data from a computer system or network by a person or process.

Etymology

The word is derived from the Latin 'ex-' (out of) and 'filtrum' (felt or filter), originally referring to the seepage of fluids through a porous substance. In modern contexts, it was adapted to describe the unauthorized 'leaking' or removal of digital information.

In the news

In this article, exfiltration refers to the deliberate theft or removal of sensitive data during a cyber incident. It highlights the serious security risks organizations face regarding their information assets.

Arctic Wolf survey reveals growing gap between AI adoption and trust in cybersecurity operations

Read the full article ↗

Industrial Cyber

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