Cell Phone Fraud Prevention

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Cell phone
Work performed while at Cellular Technical Services
Remember the nineties? Cell phones were the size and weight of a brick, analog, and totally unsecure! Unscrupulous folks could clone someone else's phone number on their own phone, in a kind of cell phone identity theft, and leave the unfortunate subscriber with a huge bill. At Cellular Technical Services I worked on a pattern recognition-based cell phone fingerprinting system that could identify such cloning fraud and disallow calls from illegal phones. Nowadays digital cellular communication protocols come with built-in encryption that makes this type of fraud virtually impossible.