An anti-fraud/anti-identity theft system verifies the authenticity of genuine identification devices, including credit cards, cellular telephones, and the like. Likewise the system detects counterfeit credit cards or lines of credit. The system comprises a modified retailer machine that verifies the...http://www.google.com.au/patents/US20080217400?utm_source=gb-gplus-sharePatent US20080217400 - System for preventing fraudulent purchases and identity theft
