Cash-dispenser giant NCR has warned that bank customers using ATM machines could be in danger of identity theft.
There has been an increase recently in reports of ATM fraud using fake cash-machine cards, particularly in the Americas.
With fraud on the rise in the region, the company warns that Hong Kong could soon be hit by similar high-technology thefts.
An e-mail, which has been widely circulated in the past week, shows how a fake card slot containing a scanner can be attached to an ATM machine to record data from a credit or debit card's magnetic stripe. A camera attached to the side of the ATM and disguised as an information box is positioned to record information on the screen and the keypad.
A wireless transmitter inside the box then sends the video to the scammers, who can capture the information on a computer in a nearby car or building. The thieves can be up to 200 metres away.
A spokesperson for NCR, the ATM giant which produced the cash machine shown in the e-mail, said the scam had been reported several times in South America. The machine shown in the document belonged to Brazilian bank Bradesco.
Police in Canada, the United States and Malaysia have reported cases of fraud using similar hi-tech methods.