Exfiltration

exfiltration

[‚eks‚fil′trā·shən]

(science and technology)

A gradual escape of fluid, for example, through a membrane or a wall.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Exfiltration

Uncontrolled outward air leakage from conditioned spaces through unintentional openings in ceilings, floors, and walls to unconditioned spaces or the outdoors caused by pressure differences across these openings due to wind, inside-outside temperature differences (stack effect), and imbalances between supply and exhaust airflow rates.

Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

exfiltration

1. The outward flow of air through a wall, joints, etc.

2. In a sewer pipeline, the volume of flow leaving a pipeline into the surrounding soil.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

data exfiltration

Data exfiltration is the unauthorized extraction of data from a computer. The word exfiltration means to withdraw secretly from a hostile situation. See malware and data extrusion.

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