from http://slashdot.org /
IT: Aussie Kids Foil Finger Scanner With Gummi Bears
Posted by samzenpus on Thursday October 28, @02:10AM
from the gummi-security dept.
"An Australian high school has installed "secure" fingerprint scanners
for roll call for senior students, which savvy kids may be able to
circumvent with sweets from their lunch box. The system replaces the
school's traditional sign-in system with biometric readers that require
senior students to have their fingerprints read to verify attendance.
The school principal says the system is better than swipe cards because
it stops truant kids getting their mates to sign-in for them. But using
the Gummi Bear attack, students can make replicas of their own
fingerprints from gelatine, the ingredient in Gummi Bears, to forge a
replica finger. The attack worked against a bunch of scanners that
detect electrical charges within the human body, since gelatine has
virtually the same capacitance as a finger's skin."
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