Recently Discovered Vulnerability in NEC Phone Systems Leaves Thousands Vulnerable to Toll Fraud
NEC SL1100

Our telecommunications engineers have recently discovered a security vulnerability in the popular NEC SL1100 phone systems that can be exploited for toll fraud. Commonly known as “phreaking,” Toll fraud is the practice of exploiting vulnerabilities in phone systems and is quite possibly the oldest form of hacking. To this day, phreaking accounts for more monetary damage than credit card fraud.