ATM PIN Reversal Scam
The e-mail says that if criminals force you to withdraw money, entering your personal identification number (PIN) in reverse will not only dispense the money requested but the ATM will send a message to the police, who "will be immediately dispatched to help you".
Be aware that the "PIN reversal function" does not exist and will not result in cash being dispensed, nor will the police be alerted to assist you.
If you try to enter your PIN in reverse, ATMs will decline the transaction and tell you that an invalid PIN has been entered. And if you key in the wrong PIN or your PIN in reverse three times, your card might be blocked by the financial institution.
Pin Reversal (Good to know)
If you should ever be forced by a robber to withdraw money from an ATM machine, you can notify the police by entering your Pin # in reverse.
For example if your pin number is 1234 then you would put in 4321. The ATM recognizes that your pin number is backwards from the ATM card you placed in the machine.
The machine will still give you the money you requested, but unknown to the robber, the police will be immediately dispatched to help you.
This information was recently broadcast on TV and it states that it is seldom used because people don't know it exists