A new system that recognises the way in which a person keys in their Personal Identification Number (PIN) could help stop criminals using stolen bank cards to get money out of cash machines. Identifying the pauses between each keypad entry is an established means of identification within the field of biometrics, known as keystroke dynamics. But researchers at Southampton University in the UK have added a sensor that can also identify the different amount of pressure each cardholder uses when entering their PIN. "We're measuring the tapping out of a rhythm, together with the force itself," says Neil White, who led the research. The combination of timing and pressures produces a unique signature for each person. Link