Cash machines have been part of our lives since 1967 when a London branch of Barclays Bank unveiled the first ATM. Millions of people around the world now use ATMs every day to withdraw cash, pay in to their account or make a variety of payments. When using ATMs people give little or no thought to the hardware, software or security of the machines. Unfortunately, ATM manufacturers and their primary customers – banks – don’t pay much attention to the security of cash machines either. This is confirmed by the increasing number of thefts from ATMs using non-destructive methods, i.e. without the use of metal cutting tools or explosives.