System security using human authorization

Details System security using human authorization System security using human authorization

2005-06-30

2009-10-13

Song, Hosuk (Department: 2435)

Information security

Monitoring or scanning of software or data including attack...

C726S026000, C726S027000

Reexamination Certificate

active

07603706

ABSTRACT:
In response to the occurrence of a restricted event in a computing device, a user of the computing device is presenting with a challenge including information designed to assist in determining whether the challenge is answered by a human. If it is determined that the challenge was not answered by a human, the restricted event is counteracted.

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