English
smudge attack
smudge + attack; coined in 2010 by researchers from the University of Pennsylvania’s Department of Computer and Information Science in Philadelphia, Pennsylvania, USA: see the quotation.
Frankish *stakkijan ‘to stick, attach’
Italian attaccare ‘to join, attach’
French attaquer
French attaque
English attack
Today it means
noun A method used to crack the password of a touchscreen device by analysing the oily smears left on the device's screen by the user's fingers.
Language periods are conventional ranges, not dates for this word.
Etymograph / smudge attack