It didn't take long to figure out thieves had compromised her account, withdrawing about $2,000.
Investigators say the Chase ATM she used on Parkway Road in Bronxville was rigged with a skimmer, a device placed in front of the ATM's real card reader.
The skimmer records account information from the card's magnetic strip. Up above, a pinhole camera hidden in a piece of plastic molding records the customer entering his or her pin number.
Thieves then make duplicate cards to make withdrawals and purchases. Over the last few months, nearly a million dollars has been stolen in towns throughout Westchester.
Police have arrested five suspects of eastern European descent. It's believed they are part of a much larger ring.
Police offer the following advice: Cover the keypad with your hands while entering your pin. Beware of ill-fitting or loose equipment or any adhesive on an atm. If you suspect something is wrong with a machine, contact police and not the bank.
Officials stress covering up is especially effective because thieves need both the pin and magnetic info in order for the scam to work.