Abstract: A system and method for restricting access to a computer system, resource, or network to live persons, and for preventing the execution of automated scripts via an interface intended for human interaction. When queried for access to a protected resource, computer system, or network, the system will respond with a challenge requiring unknown petitioners to solve a visual puzzle before proceeding, said puzzle consisting of a collection of apparently random objects, and exploiting the natural human impulse to form semantic or symbolic associations between images of objects. The subject of the test must either recognize a semantic or symbolic association between two or more objects, or isolate an object that does not belong with the others, indicating their selection with the pointing device on their local computer. If the subject succeeds in passing the test they are granted access to the requested resource, computer system, or network.

Abstract: A system and method for delivering brand reinforcement via a Human Interactive Proof, or reverse Turing test; said proof comprising a method for restricting access to a computer system, resource, or network to live persons, and for preventing the execution of automated scripts via an interface intended for human interaction. When queried for access to a protected resource, the system will respond with a challenge requiring unknown petitioners to solve a visual puzzle comprising multiple objects before proceeding. The puzzle objects are further associated in such a way as to cause human subjects to discover a strong functional link to a prominently branded object or product, or to associate the use of said object with a favorable outcome. The puzzle objects are assembled into a composite test image which is designed to frustrate machine interpretation but is still easily interpreted by a human being.

Abstract: A system and method for delivering a Human Interactive Proof, or reverse Turing test to the visually impaired; said test comprising a method for restricting access to a computer system, resource, or network to live persons, and for preventing the execution of automated scripts via an interface intended for human interaction. When queried for access to a protected resource, the system will respond with a challenge requiring unknown petitioners to solve an auditory puzzle before proceeding, said puzzle consisting of an audio waveform representative of the names or descriptions of a collection of apparently random objects. The subject of the test must either recognize a semantic or symbolic association between two or more objects, or isolate an object that does not belong with the others, indicating their selection by typing the name of the object with their keyboard.

Abstract: A system and method for restricting access to a computer system, resource, or network to live persons, and for preventing the execution of automated scripts via an interface intended for human interaction. When queried for access to a protected resource, computer system, or network, the system will respond with a challenge requiring unknown petitioners to solve a visual puzzle before proceeding, said puzzle consisting of a collection of apparently random objects, and exploiting the natural human impulse to form semantic or symbolic associations between images of objects. The puzzle objects are assembled into a composite test image which is designed to frustrate machine interpretation but is still easily interpreted by a human being. The subject of the test must either recognize a semantic or symbolic association between two or more objects, or isolate an object that does not belong with the others, indicating their selection with the pointing device on their local computer.