Fraudsters  uses a spoofed (fraudulent) caller ID matching the identity of a misrepresented organization and they invite you to punch your telephone information through your telephone keypad. The content of the incoming message is designed to trigger an impulsive reaction from you. It can use upsetting or exciting information, demand an urgent response  or use a false pretense . Any of the personal information such as bank account number, credit card number, PIN etc should not be typed in your telephone keypad in response to above mentioned calls.  As a customer you also have a role in stopping vishing scams. You are encouraged to recognize it, report it and stop it. Do not react immedietly without thinking.