Police in Knutsford and Wilmslow are urging the public to think before they punch their pin number into a cash machine following two distraction incidents on Wednesday 6 February 2013.
Sgt Andy Miller said: "We′re urging the public to be vigilant following an attempted distraction theft at an ATM in Knutsford where a woman was watched using the machine in Canute Square at around 10.40am. A man and woman, described as Eastern European, then tried to get her to open her bag saying she had dropped money on the floor.
"This happened again in Grove Street in Wilmslow at around 1.19pm, but this time the thieves were successful and managed to distract her by pretending to help her look for the money. They then stole her debit card out of her hand."
In such incidents someone will have been watching over the victims shoulder as they typed in their pin number.
To make life difficult for these distraction thieves, residents are urged to check no one is watching when they punch their pin into an ATM or chip and pin device and always attempt to conceal the number.
Anyone with information relating to these two incidents or who sees someone acting suspiciously should contact police on 101.
Anyone with information can also contact Crimestoppers anonymously on 0800 555 111.