PALO ALTO, Calif.-Corsair Communications said AT&T Wireless Services Inc. of New York will step up deployment of the PhonePrint cellular fraud control system in its New York metropolitan market. AT&T had installed a limited scale Corsair PhonePrint system last year and will expand the system throughout the entire market to prevent cellular cloning, Corsair said.
PhonePrint uses radio frequency fingerprinting technology, originally developed for signal intelligence applications, to detect subtle differences between the radio signals broadcast by different cellular phones, Corsair said.
